Answer:
choice 2) area = 319.2 in²
Step-by-step explanation:
triangular ends = 6.9 x 8 = 55.2
sides = 3 x 8 x 11 = 264
264 + 55.2 = 319.2 in²
h(t)=-16t^2+375t
4 1/2 + 1 3/5 = 6 1/10 or 61/10
Answer: the answer is 12.3
Just do 15/100(82)