Work the following area application problem.
you are laying an asphalt driveway. how much surface area must you cover if the driveway is 21 feet long and 10.5 feet wide?
area = sq. ft.

The asphalt driveway is in the shape of a rectangle with a length of 21 feet and a wdth of 10.5 feet.

Recall that the area of a rectangle is given by length x width.

Therefore, the surface area that was covered in asphalting the driveway is given by
Area = 21 x 10.5 = 220.5 sq. ft.

Num of plants = (original#ofplants)*(1.6)^t