The fifth root of 12 is equal to the fifth root of 7 times the fifth root of 5.

That is not correct 
7 * 5 = 35   not 12

what would be correct is 

12^(1/5) = 6^(1/5) * 2^1/5)

recall that  fifth root of x = x^(1/5)

Ok but uh what do you need with?

Answer: the correct answer is 10step-by-step explanation: let the number be n, then the expression becomes,then“twelve more than the quotient of a number and two, decreased by four” iswhen n=4,we substitute 4 whetever we see n to get,we simplify to obtain,we further simplify to get,therefore the correct answer is c.