Answer:
12
Explanation:
to find how much she made off of brownies, use this equation
15×.8=$12
then, to find how much she made off of cupcakes, subtract the amount she made off of brownies from the total price
$30 - $12 = $18
lastly, to find how many cupcakes could be bought with $18, divide 1.5 from 18
18 ÷ 1.5 = 12
so 13 cupcakea