Answer: 102
Step-by-step explanation:
6x6 to get the square
7x6 to get part of the other shape
21 -6-7 to get the triangle that we don't have a number
8x6 to get a square but then divide by 2 too get the triangle.
now add all together to get 102
712÷74 actually equals 9.62 so none of the above.. but the closest one is 13
B.3(n-5)=21
n-5=7
n=12
C.n=2
D.x=0
Ex=0
70 mph would be about the average speed you would need to go.