Answer:
7.9
Step-by-step explanation:
9 students neither speak hausa nor lgbo.
Perimeter of a semicircle with diameter d = πd/2 + d
D(15) = 3500 -20(15)
D(15) = 3500 - 300
D(15) = 3200
In 15 hours of driving the Brown family is 3200(no unit given) away from home.
4pi r
