Answer:
I think C. is it
Step-by-step explanation:
The formula of a volume of a cone:
![V=\dfrac{1}{3}Bh[/rex]B - area of a baseh - heightWe have[tex]V=90\ cm^3,\ B=18\ cm^2](https://tex.z-dn.net/?f=V%3D%5Cdfrac%7B1%7D%7B3%7DBh%5B%2Frex%5D%3C%2Fp%3E%3Cp%3EB%20-%20area%20of%20a%20base%3C%2Fp%3E%3Cp%3Eh%20-%20height%3C%2Fp%3E%3Cp%3EWe%20have%3C%2Fp%3E%3Cp%3E%5Btex%5DV%3D90%5C%20cm%5E3%2C%5C%20B%3D18%5C%20cm%5E2)
Substitute:

<h3>Answer: 15 cm.</h3>
If something is 60% off, that means it is now going to be 40% of its original price because
100 - 60 = 40
To find final price multiply the percentage as a decimal by the price.
40% is 40/100 which as a decimal is 0.4
0.4 x 100 = $40
The pants will be 40 dollars.
The volume of the resulting solid will be twice as large as the volume of the original solid.
Answer:
x = 10
Step-by-step explanation:
Find x by isolating the variable, meaning get rid of every term until the variable, in this case it's x, is on one side of the equation and everything else is on the other side.
x - 2 = 8
Add +2 to both sides of the equation to cancel out the -2
x - 2 = 8
<u> +2 +2</u>
x + 0 = 10
x = 10