17. You count the number of melons you use based on the number of bowls of fruit salad made, as shown in the table below. Which equation describes the relationship between the number of bowls of fruit salad f and the number of melons used m?

    Fruit salad, f	Melons, m
    2	1
    4	2
    6	3
    8	4
    10	5

    1. f = 0.5 m f equals 0.5 m
    2. 2 f = m 2 f equals m
    3. m = 0.5 f m equals 0.5 f
    4. 2 m = 0.5 f 2 m equals 0.5 f
18. Which graph represents the solutions to the inequality 3 ( f + 2 ) > 2 f + 4 ? 3 open f plus 2 close greater than 2 f plus 4 question mark
    6. 
    7. 
    8. 
    9. 

GRIDDED RESPONSE

Record your answers in a grid.

19. You can mow 400  ft 2 400 , ft squared  of grass if you work for 5 min, 800  ft 2 800 , ft squared  if you work for 10 min, 1200  ft 2 1200 . ft squared  of grass if you work for 15 min, and so on. How many square feet can you mow in 45 min?
20. An insect flies 20 ft in 1 s. How fast does the insect fly in miles per hour? Round to the nearest hundredth if necessary.
21. Isabella is covering a square tabletop with square mosaic tiles. The tabletop is 2 ft long and 2 ft wide. Each tile is 1 4 1 fourth  in. long and 1 4 1 fourth  in. wide. What is the minimum number of tiles needed to cover the tabletop?
22. What is the solution of 7 5 = 9 x ? 7 fifths , equals , 9 over x , question mark  Round your answer to the nearest thousandth if necessary.
23. Suppose P = { − 2 , 6 , 7 , 9 }  and  Q = { 0 , 2 , 4 , 6 } . p equals left brace negative 2 comma 6 comma 7 comma 9 right brace , and q equals left brace 0 comma 2 comma 4 comma 6 right brace .  How many elements are in the set P ∪ Q ? p union q question mark
24. A family visited an amusement park. A person must be 3 ft tall to ride the roller coaster. One child is 4 in. short of the height regulation. By what percent must the child's height increase so that the whole family can ride the roller coaster?
25. What is the value of d when 11 ( d + 1 ) = 4 ( d + 8 ) ? 11 open d plus 1 close equals 4 open d plus 8 close question mark
26. You are making a scale model of a sports field. The actual field is a rectangle with a length of 315 ft and a width of 300 ft. Your scale model is 15 in. wide. What is its length in inches?

Short Response

27. You have a wireless phone plan that costs $25 per month. You must also pay $.10 per minute for each minute over 500 min. Your phone bill was more than $30 last month. Write an inequality to represent the number of minutes m you spent on the phone last month. Suppose you use 525 min next month. How much will your bill be?
28. An electric company charges a monthly fee of $30.60 plus $.0176 for each kilowatt-hour (kWh) of energy used. Write an equation to represent the cost of the family's electric bill each month. Suppose the family used 1327 kWh of energy. How much was their bill?
29. A vending machine starts with 360 snacks. After 1 day it has 327 snacks, after 2 days it has 294 snacks, after 3 days it has 261 snacks, and so on. Describe the pattern of the number of snacks n based on the number of days d.

Extended Response

30. A company has $1500 in its budget for paper this year. The regular price of paper is $32 per box, with a 10% discount for bulk orders. If the company spends at least $1400 on paper, the shipping is free. Write a compound inequality to represent the number of boxes the company can buy with the discount and receive free shipping. What are the possible numbers of boxes the company can buy with the discount and free shipping?

Table of Contents