Which unit would you most likely use to measure the length of a shoe

Barbara's piano instructors house is 7 1/8 miles from her house. after biking for 1 3/4 miles she stops to rest how much longer does she need to bike to reach her instructor's house

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?