Tis the solution to the equation x + 16 = 64? x = 4 x = 32 x = 36 x = 47

Ineed to know the answer to this algebra question.

(x-5)1/2+5=2 what is possible solution of this equation

In a certain city, the hourly wage of workers on temporary employment contracts is normally distributed. the mean is $15 and the standard deviation is $3. what percentage of temporary workers earn less than $12 per hour? a. 6% b. 16% c. 26% d. 36%