Jenn is slicing a cone with a height of 10 centimeters and a radius of 4 centimeters
with a plane that passes through the vertex and is perpendicular to the base.
What is the area of the cross-section in square centimeters? Explain your answer.

Can someone check my answer? you

Kevin is an insurance salesman. when he sells a policy, he makes 20 percent of the policy premium (p) up front; then each year the policy is active, he receives 15 percent of the original premium. which equation could be used to figure his total commission on a policy that has been active for five years? c=0.80p c=0.20p + 0.15p c=0.35p + 4(0.15) c=0.95p

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?