If you sleep for 25 minutes, eat for 15 minutes, tv for 30 minutes what is the ratio of sleep to total

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 are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?