Question

Write a function rule for the table.

Hours Worked Pay
2 $12.50
4 $25.00
6 $37.50
8 $50.00








p = h + 12.5


h = 6.25p


p = 12.5h


p = 6.25h

Answer 1

Define a variable and write an expression for the phrase.

the quotient of 2 times a number and 19

Answer 2

Which set of numbers is the most reasonable to describe a person’s hat size?


irrational numbers


whole numbers


rational numbers


integers

Answer 3

The total cost to rent a row boat is $18 times the number of hours the boat is used. Write an equation to model this situation if c = total cost and h = number of hours.


h = 18c





c = 18h


c – 18 = h

Answer 4

Which set of numbers is the most reasonable to describe the number of desks in a classroom?


rational numbers


integers


whole numbers


irrational numbers

Answer 5

Define a variable and write an expression for the phrase.

8 minus a number


8/n



8 – n


n/8


8n

Answer 6

Write a function rule for the table.

Days Cost to Rent a Truck
1 34
2 56
3 78
4 100








c = 12d + 22


c = 22d + 12


c = 22d


c = 22d + 22

Answer 7

Which of the following is false?


the cost to mail an envelope and the weight of the envelope is a positive correlation


amount of exercise and percent of body fat is a negative correlation


the graduation rate in a city and the rate of unemployment in a city is a positive correlation


a child’s age and a child’s shoe size is a positive correlation

Answer 8

Evaluate the formula V=Bh/3 for B = 9 in.2 and h = 32 in.


32 in.3


9.6 in.3


288 in.3


96 in.3

Answer 9

Are you sure

Answer 10

Over the first five years of owning her car, Gina drove about 12,700 miles the first year, 15,478 miles the second year, 12,675 the third year, 11,850 the fourth year, and 13,075 the fifth year. Find the mean, median, and mode of this data.


mean = 13,156; median = 12,700; no mode


mean = 13,156; median = 12,700; mode = 3,628


mean = 12,700; median = 12,700; no mode


mean = 12,700; median = 13,156; no mode