HELP what is the volume of container

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?

Name the quadrilaterals that have four equal sides.

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?