Ray wants to buy a hat that costs $10 and some shirts that cost $12 each. The sales tax rate is 6.5%. The expression 0.065(10+12s) can be used to determine the amount of sales tax that Ray will pay on his entire purchase. Expand the expression

0.65 + 0.78s

Step-by-step explanation:

From the question, we are informed that Ray wants to buy a hat that costs $10 and some shirts that cost $12 each and that the sales tax rate is 6.5%.

We are further told that the expression 0.065(10+12s) can be used to calculate the amount of sales tax that Ray will pay on his entire purchase.

Therefore, expanding the expression will give:

= 0.065(10+12s)

= (0.065 × 10) + (0.065 × 12s)

= 0.65 + 0.78s

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