The value of a car is inversely proportional to its age. if a car is worth $8100 when it is 6 years old, how old will it be when it is worth $5400 ?

If f (x) = (3x + 7) ?, then f (1) = ?

A square has an area of 100. What is the length of each side?

How to solve using substitution y=3/4x+5 and 4x-3y=-1

Given that cos a = 1/3 find cos 2a

Account You have a job interview that is 330 miles away. If your average driving speed is 55 miles per hour, how long will it take you to get there? Show your work. Check your answer.

Corresponding sides of similar triangles are A opposite B proportional C equals

Find the inverse of A (r) = 15+3r

What is the 7 described as in 2 x 5 + 7 (3 + 13) ?

Write an expression that is equivalent to 4 (x+2y)

For an employee training, the employee to instructor ratio is 18 to 2. If there are 20 instructors for the training, how many employees participated in the training?