Answer:
57 years
Step-by-step explanation:
Divide 400 by 7.
I hope this helps you
Area=width×length
Area=18×4
Area=72
Answer:
SA = 2520 ft^2
Step-by-step explanation:
a = 21ft
b = 29ft
c = 20ft
h = 30ft
SA = 2
+ (a+b+c)h
= s(s﹣a)(s﹣b)(s﹣c)
s = 
SA= ah + bh + ch +

SA= (21 * 30) + (29 * 30) + (20 * 30) +

SA = 2520 ft^2
Answer:
i need the answer also
Step-by-step explanation: