103 would be the correct answer
The final step in solving the inequality=
-6<-2x
-2x>-6
x<3
Answer:
B= 44.9506°
Step-by-step explanation:
WE apply sine angle formula

Given angle C = 51, c= 11 and b = 10

Plug in the values

Cross multiply it
10 * sin(51) = 11* sin(B)
7.771459615 = 11 sin(B)
Now divide by 11 on both sides
0.706496328 = sin(B)
Now 
B= 44.9506°
I would assume it's the area of both the sidewalk and pool combined (79ft x 49ft = 3,871) minus the area of the pool alone (75ft x 45ft = 3,375). The area of the sidewalk would then be
496 ft
.