Please i need help ASAP!​

Find the vertex of the function given below y=x^2-6x+1

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

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.