Find the indicated real nth root(s) of a n = 2, a = -49

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

Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

Kai walked one and two-thirds of a mile on saturday and four and one-sixth of a mile on sunday. how many miles did kai walk?