What is √ 63 − 4 √ 7??

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

Which recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous year? f(n+1)=f(n)+5

If g^-1(x) is the inverse of g (x) which statement must be true