Al-ounce letter costs $0.50 to mail through the postal service. A 3-ounce letter costs $0.92 to mail through the postal service.
The postal services calculates the weight to the whole ounce.
What functions represent the total cost f (x) to send a letter that is 2 ounces? Select all that apply.

A:f(3) = 0.21 (x - 1) + 0.50

B:f(x) = 0.50 (2 – 1) + 0.21

C: f(x) = 0.50x

D:f(3) = 0.213 +0.29

E:f(1) = 0.212

it’s D

Plz make brainliest

Step-by-step explanation:

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!