Question

Speakers cost $22 and songs cost $1.25 each. The sales tax rate is 7.5%. The expression 0.075(22 + 1.25s) can be used to determine the entire purchase of speakers and songs. Expand the expression and round to the hundredth.

Answer 1

Total cost = 23.65 + 1.34s

Explanation:

This is just the tax;

0.075(22) + 0.075(1.25s)

1.65 + 0.09375

Total cost = 22 + 1.25s + 1.65 + 0.09375

Total cost = 23.65 + 1.34375s

Total cost = 23.65 + 1.34s