Help, again... ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍

The perimiter of a rectangle is 70 inches the legneth of the rectangle is 5 less than 3 times the width of the rectangle what is the width of the rectangle

Acircular hot tub located near the middle of a rectangular patio has a diameter of 48 inches. the patio measures 11 feet by 6 feet. what is the area of the patio that is not covered by the hot tub?

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8