Ronald has three times as much money as pauline. if ronald has $28 more than pauline, how much money does pauline have?

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

Strawberries cause two hours per pound kate buys 5 pounds he gets 20% off discount on the total cost how much does kate pay for the strawberries

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is