What is the surface area of a cylinder with base radius 4 and height 7?
Either enter an exact answer in terms of or use 3.14 for T and enter your answer as a decimal

Option 1: $30 an hour plus a nonrefundable deposit of $50 option 2: $20 an hour plus a nonrefundable deposit of $75 kyle is renting a jetski for the day. if he can rent the jetski in one hour increments, what is the minimum number of hours must he rent the jetski for option 2 to be a better deal then option 1?

Could somebody me with this radical simplification?

Lines a and b are perpendicular. if the slope of line a is 3, what is the slope of line b?