The expression (y^20) (y^-5)^2 is equivalent to y^n. What is the value of n? n = 27 n = 10 n = -200 n = 17

n = 10

Step-by-step explanation:

Using the rules of exponents

× ⇔

=

Given

( ) (

= ×

=

= → in the form with n = 10

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.

the answer to your question is c.)   volcanoes built the mountains and earthquakes tore them down.

step-by-step explanation: