Answer: $8470
Step-by-step explanation:
To solve this, you can substitute 4 for x:

Mikayla's scooter is worth around $8470 after 4 years.
It was originally worth 13,500 dollars and depreciated by 11% every year.
Doubling the radius of the cylinder will quadruple the volume.
I think 4.923935; 5,03709; 12; 17
36:21 in simplest form is 12:7, because 3 goes into both 36 and 21. Simplifying ratios is essentially the same thing as simplifying fractions. Once we have 12:7, we can't reduce any further, because 7 is prime.
Hope this helps!
Tan(angle) = opposite leg/ adjacent leg
Tan(30) = x/22
X = 22 * tan(30 )
X = 12.701 feet.
Round as needed