Answer:
$85.47
Explanation:
Before tax and before tip: $74
Tax is 5%.
5% of $74 = 0.05 × $74 = $3.70
Cost including tax (but not tip): $74 + $3.70 = $77.70
After tax but before tip: $77.70
Tip is 10%.
10% of $77.70 = 0.1 × $77.70 = $7.77
Total price after tax & tip:
$77.70 + $7.77 = $85.47