Question

a set of speakers costs $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 sales tax on the purchase of a set of speakers and s songs. expand the expression and round to the nearest hundredth.

Explanation:

Step1: Apply distributive property

$0.075\times22 + 0.075\times1.25s$

Step2: Calculate static term

$0.075\times22 = 1.65$

Step3: Calculate variable term

$0.075\times1.25s = 0.09375s \approx 0.09s$

Answer:

$1.65 + 0.09s$