The sum of 2 times a number and 10 is the same as 6 times the difference of the number and 1. What is the number?

Solve the system of equations. y= 2x y= x^2 - 15

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?

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?