Answer:
Step-by-step explanation:
2l+2w+h=72
l=3w
h=2w
2(3w)+2w+2w=72
10w=72
w=7.2
l=3 × 7.2=21.6
h=2w=2 ×7.2=14.4
Sara is wrong because making 3 cakes instead of 1 would require 2 1/4 cups of sugar. The original 3/4 cups of sugar would be multiplied by 3 (3/1 x 3/4) which would be 9/4, or 2 1/4, cups.
200-70=130/10=13. so 13 weeks
the second one is the only one
