Is the following relation a function?

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

Which fraction is equal to 1hole and 2/5? a.3/5 b.75 c.57 d.73

What is the 8th term of the geometric sequence with this explicit formula? an= )(n-1)