Answer:
Step-by-step explanation:
v=H*W*L
280=7*W*(6+W)
280=42W+7W^2
40=6w+w^2
W^2+6W-40=0
(W-4)(W+10)=0
W=4
We can only use positive results
L=6+W
L=4+6=10
=10
Answer: 5/4 = 1 2/8
Step-by-step explanation: That's the answer
the answer is $65
C
Its -42