What is 8 1/2 - 2 2/3 as a fraction

Given that de, df, and ef are midsegments of △abc, and de=3.2 feet, ef=4 feet, and df=2.4 feet, the perimeter of △abc is .

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

1.two more than the quotient of a number and 6 is equal to 7 use the c for the unknown number translate the sentence into an equation