Answer:
58
Step-by-step explanation:
set them equal and solve for b
70-2b=28+5b
7b=42
b=6
now plug be back in
28 + 5(6) = 58
Answer: First box=3, second box=4, third box=0, last box=2
Step-by-step explanation: Do the math for the boxes.
H = 5 , W = 8 , L = 16