Question

I am reviewing for a make up test and need help refreshing my brain on how to do this.

Answer 1

r^42

EXPLANATION :

From the problem, we have the expression :

`(r^6)^7`

Note that the exponents are multiplied together when the expression is raised to an exponent.

That will be :

`(r^6)^7=r^(6*7)=r^(42)`

The answer is r^42