25 points. Find the following length. Pls help

Which of the following pairs of functions are inverses of each other? o a. f(x)=x72+8 and 96-9 = 7/x+2) =8 o b. f(x)= 6(x - 2)+3 and g(x) - *#2-3 o c. $4) = 5(2)-3 and 90- 4*: 73 o d. f(x) = 6)-12 and 910 – +12

The square root of 9x plus 7 plus the square rot of 2x equall to 7

Aline passes through 3,7 and 6,9 what equation represents the line