Which of the relations given by the following sets of ordered pairs is a function?

Betty saves $161 a month. She saves $141 less each month than Jack. How much will jack save in 2 years?

The distance a body falls from rest varies directly as the square of the time the body is falling. If a body falls 81 ft. in 3 seconds, how far will it fall in 7 seconds?

Suppose a new car is worth $30,000. you can use the function y=30,000 (0.85) ^x to estimate the car's value after x years

Write an expression for this calculation. double 4 and then add 5 times 9.

On a circle of radius 7 feet, what wlangke would substend an arc of length 7 feet?

A science fair poster is a rectangle 48 inches long 24 inches wide What is the area of the poster in square feet?

If the diagonals of a kite are 10cm and 24cm, find its area.

A compound inequality is graphed and its graph consists of real numbers which open sentence could have resulted in this solution set r > 3 or r < - 2 r <3 or r 3 or r> - 2 r - 2

Simplify 7/3+3 (2/3-1/3) squared

Which expression is equivalent to 2x^2-72