As a basketball is bounced, the motion is parabolic. In the graph above, y = 0 represents hand level for a basketball player. Find the focus and directrix of the middle bounce (parabola).

Let w=23 . what is the value of w + 45 ?

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults. how many students and adults went if the ticket charge was $42.75