Answer:
l=9 feet
Step-by-step explanation:
area of rectangle=l*w
3=1/3 l
length=9 feet
4x - 5(x + 3) Remove the brackets. Watch the - sign and -5*3
4x - 5x - 15 Combine the xs
-x - 15
36
Divide 84 by 7
84 ÷ 7 = 12
Now multiply 3 by 12
3 × 12 = 36
Then
7 : 3 = 84 : 36
