Answer:
Hiya, your answer is: w = 4.6
Step-by-step explanation:
34.224 / 3.1 = 11.04 11.04 / 2.4 = 4.6 w = 4.6
area = 88 mi²
all vertical dimensions = 8/2 = 4 mi
area = (4 x 11.9) +(4 x 6.1) + (4 x 4) = 88 mi²