Hi! Need help with this one: Solve for f(x) if g(x)=1/2f^-1(3(x+2))-7 It is looking for a function given a transformation on the function's inverse.

Eric drew a scale drawing of a country park. the scale he used was 1 inch = 2.5 yards. the picnic area is 80 yards wide in real life. how wide is the picnic area in the drawing ?

Acircular city park has a sidewalk directly through the middle that is 111 - feet long. if each bag of fertilizer covers 50 square feet, then determine how many bags of fertilizers the parks and recreation department needs to use to cover the circular park. ignore all the sidewalks around and through the park.

Pls! does anybody know a shortcut for answering these types of questions in the future?