Answer:
I think it would be 4×n-3 = n+12
<span>(14x^2+21x) = 7x(2x + 3)
A= L * W
but L = 7x so W = </span>2x + 3
<span>
answer: </span><span>width is (2x +3) feet</span><span>
</span>
Move 12 to the other side, making it negative
h=31-12
h=19
Answer:
18750
Step-by-step explanation: