Free points and 5 stars and thx will do more so hurry

Who is stronger 1 or 2

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Plz a. s. a. p.the table shows the number of male and female contestants who did not win a prize. what is the probability that a randomly selected contestant won a prize, given that the contestant was female? write the probability as a percent. round to the neares tenth, if needed.

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?