Sarah worked 8 more hours than Heidi. Write an expression that represents the number of hours each student works in term of Sarah.

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.

Proving the parallelogram diagonal theoremgiven abcd is a parralelogam, diagnals ac and bd intersect at eprove ae is conruent to ce and be is congruent to de