Marc just bought an SUV for $56,000. This is $7,800 less than twice what his wife paid for her car last year. How much did his wife pay (in dollars) for her car? (please I really need help on this)

What is the inverse of the function f(x)=4x+8

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.