Answer:
$0.71
Explanation:
Tax is a percentage of the total cost. You need to find the total cost of everything bought, then add to that 7.5% of that total cost.
Total cost = $3.59 + $2.87 + $2.99 = $9.45
Tax = $9.45 x 0.075 = $0.71
If you're not sure of the math, you can eyeball it too by estimating. The total cost is about $3.50 + $3.00 + $3.00 = $9.50. 10% of $9.50 is $0.95. 7.5% would be even less than that. The only answer it could be is $0.71 - everything else is far too high.