Intigration of ∫1/√(a²+x²)dx

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?