90% into a fraction in its simplest form

Jim makes $10.35 per hour. write an equation that jim can use to calculate his pay.

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?

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2