Answer:
<h2>A = 2.25π</h2>
Step-by-step explanation:
The formula of an area of a circle:

r - radius
The formula of a circumference of a circle:

We have:

Substitute:
<em>divide both sides by 2π</em>

Substitute:

The answer is 160 children’s tickets were sold that day
Answer:
34,200
Step-by-step explanation:
Ascend means up so it's positive.
Volume of a cylinder of radius r and heigth h is

Here h is 15 cm and r is 6 cm.
-7 + -5
When you add negative, it would be the same as subtracting
Turns into: -7-5
-(7+5) = -12
The solutions is -12