Answer: B: 20
Step-by-step explanation: We can take 40% as a fraction to make it 4/10, simplifying gives 2/5. 2/5 of 50 is 20!
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1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121
67.5 divided by 11.25 equals 6 so you made 6 costumes
3\4a=24 multiply both sides by 4 to get rid of 4(4 x 24=96)
3a=96 divide both sides by 3 to remain with a
a=32