A bag has pink, blue and red candies. 30% of the candies are pink and 25% are blue. If there are 80 blue candies, how many are pink?

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

Solve the formula ax+ by = c for x.