Can somebody help mewe

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

Which of the following is not a subset of {1,2,3}?

Select the correct answer from each drop-down menu. the length of a rectangle is 5 inches more than its width. the area of the rectangle is 50 square inches. the quadratic equation that represents this situation is the length of the rectangle is inches.