What is the simplified value of 16^1/4

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

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression