Which of the following represents a function?

(3, 4), (-3, 2), (3, 8), (5, 5)

(2, 3), (4, 3), (-2, - 3), (-4, - 3)

(-1, 2), (-2, 1), (-1, - 2), (-2, - 1)

(5, 1), (5, 2), (5, 3), (5, 4)

The perimeter of a rectangle is 48 cm. The length is 6 cm less than twice the width. Which system would model this situation, and what are the length and the width? A 21 + 2w = 48 1 + 2w = 6 Solution: (9,6) B.

Converting observations from original values to standard deviation units is known as

A laptop computer is purchased for $2700. Each year, it's value is 70% of its value the year before after how many years will laptop computer be worth $500 or less

Write an expression to show k less than 3.5

Chau will run at most 28 miles this week. So far, he has run 18 miles. What are the possible numbers of additional miles he will run? Use t for the number of additional miles he will run. Write your answer as an inequality solved for t.

This year, Cornell's class took two more than three times as many field trips as last year's class. This year, Cornell's class took a total of 8 trips. How many field trips did his class take last year?

What are all the ways to get 60 by multiplying

A rectangle is twice as long as it is wide. it's width is 5 1/2 cm. find the area of the rectangle.

Which of the following ratos is not equalvillent to 4/8. 1/2 9/18 12/32 18/36?

C times 9 for c equals 13