Assume that y varies inversley with x if y=7 when x=2/3 find y when x=7/3

Angela took a general public aptitude test and scored in the 88th percentile for aptitude in accounting. what percentage of the scores were at or below her score?

Suppose your school costs for this term were $4900 and financial aid covered 3/4 of that amount. how much did financial aid cover? and how much do you still have to pay?

Solve the triangle. a = 21°, c = 105°, c = 5