Answer:
9526/87
Step-by-step explanation:
87·x=9,526
x=9526/87
729 ÷ 3 = 243
so if you do 243 × 3 = 729
so your answer will be 243
Joe is 15, 45-15=30 30/2=15
6 feet * 7 feet = 42 feet²
18 feet * 21 feet = 378 feet²
42 feet² was painted for $52
1 feet² will be painted for $52/42
378 feet² will then be painted for: ($52/42) * 378
= $468
Hence 18 feet by 21 feet will be painted for $468
Hope this helps.