A student is raising money for cancer research. A local business agrees to donate an additional 25% of what the student raises, while a local politician also agrees to donate an additional 5% of what the student raises. If the student raises $450.00, what is the total donation?
(Hint: The total donation is the amount the student raises plus the additional donations.)

Question 10 of 211 pointuse the elimination method to solve the system of equations. choose thecorrect ordered pair.10x +2y = 643x - 4y = -36a. (4,12)b. (-3, 11)c. (2,10)d. (-5, 8)

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.

Determine the area of a triangle with (see picture below)