He gets 8 dollars every hour. :)
Answer:
Following are the solution to the question:
Step-by-step explanation:

X/9 - 15
X divided ( / ) by 9 minus ( - ) 9
Answer: last option (5π√146 units²)
Step-by-step explanation:
To solve the exercise you must apply the formula for calculate the lateral area of a cone, which is shown below:

where r is the radius but L is the slant height.
As you can see in the figure attached:

But you need to find the slant height with the Pythagorean Theorem (L would be the hypotenuse):

Substitute into the formula, then:
units²