18 a fund-raiser at the school raises
$617.50. they sent $580.45 to local
charities. what percent of the money
went to charities?

94%

Step-by-step explanation:

580.45/617.50 = x/100 [setup]

580.45 × 100 = 617.50 × x [cross multiply]

580.45×100 is 58045.

617.50 × x is 617.50x

58045/617.50x [Divide 58045 by 617.50x]

x=94. So the answer is 94%

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)