
Answer:
$17.88
Step-by-step explanation:
Let the price of the meal be p. Then:
p(1.07) represents the price including tax but without tip.
p(1.07)(1.15) represents the meal price (p) plus 7% sales tax and 15 % tip on the meal price plus tax.
p(1.07)(1.15) = $22 (that's all she has). Find the meal price. Multiplying 1.07 and 1.15 together, we get 1.2305. Thus, 1.2305p = $22, and:
p = $22/1.2305 = $17.88. The lady can order a meal priced at $17.88 and still have enough left out of her $22 to pay the sales tax and tip amounts.