Ascale model of a park has an area of 252 cm2. the actual park has an area of 28 km2. what is the scale factor used for the model?

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

The clayton family’s pool has vertices at the coordinates (0, 2), (0, 5), (2, 5), (2, 6), (5, 6), (5, 1), (2, 1), and (2, 2). if each grid square has an area of 9 square feet, what is the area of the pool?

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