John sees a scale drawing of a boat that has 1:30 on it. He measures the length of the boat on the scale drawing to be 10 cm. How long is the real boat, in centimeters? 100 cm
5000 cm
200 cm
500 cm

The first floor of marcus’ house is 1,440 square feet. he will cover 1,033 square feet with wood and the rest with tile. a box of tiles will cover 11 square feet. how many boxes of tile does marcus need to buy to cover the floor?

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm