Sandra walks 13 miles in 3 hours. At what unit rate does Sandra walk?

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Write an expression that represent sarah’s total pay last week.represent her hourly wage with w monday 5 tuesday 3 wednesday 0 noah hours wednesday 8 only with w wage did noah and sarah earn the same amount last week?

Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coup?