An equation for the depreciation of a car is given by y = a(1 - 1)', where y = current value of the car, a = original cost, r = rate of
depreciation, and t = time, in years. the value of a car is half what it originally cost. the rate of depreciation is 10%.
approximately how old is the car?
3.3 years
5.0 years
5.6 years
6.6 years

Acircus act has 3 times as many elephants as acrobats. jorge noticed that all together there were 56 legs in the circus ring. how many elephants were in the show?

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 california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.

Suppose that 15 inches of wire cost 60 cents. at the same rate, how much (in cents) will 12 inches of wire cost