Ninety percent of the ninth grade students at Richbartville High School take algebra. If 180 ninth grade students take algebra, how many ninth grade students do not take algebra?
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Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2 acellus answer