What are the first two steps in solving the radical equation below \sqrt(x+3)-7=15

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true

If f(x)=x+7 and g(x)=1/x what is (fog)(x)