MT&A uses the function, f(x) = 475 - 15x, to depreciate smart phones, where f represents the value of a smart phone and x represents the number of months since its purchase. Part A: Find f-1, and explain what it represents in this situation. Part B: When will the depreciated value of a smart phone be less than $100? Part C: What does x represent in f-1(x) = 30? What is the value of x

40 minutes

step-by-step explanation:

add the time and multiply by 2

for future students the answer is b

hope i

-lavira: )

134.6 us dollars

step-by-step explanation:

1 us dollar = 1.33 canadian dollars

so, 150 us dollars = 150 × 1.33 = $199.5.

in canada, the money mitchell spent = 20 canadian dollars.

remaining canadian dollars with him = 199.5 - 20 = 179.5.

after mitchell returned to us, he exchanged the remaining canadian dollars to us dollars.

179.5 canadian dollars = 179.5 × 0.75 = 134.6 us dollars.