Sand castles
juan built a sand castle like the one shown. the castle is shaped like a rectangular prism with a rectangular pyramid on top. how much sand did it take juan to build it?
 
he used
in.3 of sand to build the castle.

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52

Damon makes 20 cups of lemonade by mixing lemon juice and water. the ratio of lemon juice to water is shown in the tape diagram. lemon juice\text{lemon juice} lemon juice water\text{water} water how much lemon juice did damon use in the lemonade? cups

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?