Andre’s school day is 63 hours long. He has 8 classes that are 3 hour long. a. Create an expression to show how much time Andre is not in class during the day.

Find the value of x for which abcd must be a parallelogram -9-6x x-30

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.