5/8y + 7- 7/8y + 1/8y in like terms

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?

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?