If the perimeter fence is 250 and the width is 70,what is the length of the fence? (based on me other question)

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

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

If the scale factor between two circles is 2x/5y what is the ratio of their areas?