Some children hold a bake sale for a local charity, and raise $90. 10% comes from selling biscuits. 50% of the remaining money comes from chocolate cakes. How much is made from selling chocolate cakes?

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.

Your car's gasoline tank holds 18 gallons of gasoline. on a trip in canada, the tank is one-quarter full. you want to fill the tank. how many liters of gasoline are needed to fill the tank

Which of the following best describes a basic postulate of euclidean geometry? a. all straight line segments have a midpoint. b. any straight line segment can be extended indefinitely. c. all right angles are formed from perpendicular segments. d. any two right angles are supplementary.