For Mother's Day, Bob made a pop-up card for his mom. He started with a large paper rectangle. Then, Bob cut out a square with an area of 81 square inches from the middle of the large rectangle. The area of the piece Bob had left was 129 square inches. Let r represent the area of the rectangle that Bob started with. Which equation models the problem?

Answer this question only if you know the 30 points and

An airplane consumes fuel at a constant rate while flying through clear skies, and it consumes fuel at a rate of 64 gallons per minute while flying through rain clouds. let c represent the number of minutes the plane can fly through clear skies and r represent the number of minutes the plane can fly through rain clouds without consuming all of its fuel. 56c+64r < 900056c+64r< 9000 according to the inequality, at what rate does the airplane consume fuel while flying through clear skies, and how much fuel does it have before takeoff? the airplane consumes fuel at a rate of gallons per minute while flying through clear skies, and it has gallons of fuel before takeoff. does the airplane have enough fuel to fly for 60 minutes through clear skies and 90 minutes through rain clouds?

Graph the system of equations. {6x−4y=−244x−8y=−32 use the line tool to graph the lines.