Answer:
5 and -6
Step-by-step explanation:
Area of rectangle: 15 x 7 = 105
area of semicircle: 1/2 (3.14r^2)
radius is half of diameter so it would be 7.5
1/2 (3.14(7.5)^2)
=1/2 (176.71)
=88.355
rounded is 88.4
16: B; irrational number, real
17: C; whole, integer, rational, real
18: B; real, rational, integer