Help me please, question in the bottom:

Given the function f(x) = 3x + 1, evaluate f(a + 1). a. 3a + 1 b. a + 2 c. 3a + 4

You are cycling around europe with friends. a cycling festival is starting soon in barcelona. it will take 4.5 hours to cycle there. how many minutes in total is this?

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.