Please Help! Evaluate this expression 10.82-9.99 A. 0.53

B. 0.83

C. 1.01

D. 1.23

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !