Caleb bought groceries and paid $1.60 in sales tax the sales tax rate is 2.5% what was the price of caleb's groceries before tax

Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

What is the length of the unknown leg in the right triangle ?