Answer:
101, 135, 131, 99, 138, 136, 140
X=2.5
Explanation:
So you would expand the parentheses on the left
4(x)+4(7)38
Which equals
4x+28=38
Then subtract 28 from both sides
4x=38-28
4x=10
Then divide by 4 10/4=2.5
X=2.5
multiply the 2 numbers together than divide by 2
7 1/2 = 15/2
12 2/3 = 38/3
15/2 * 38/3 = 570/6 =95
95/2=47.5 square feet