Lisa has a circular garden with a diameter of 17.5 feet. If she uses 3 teaspoons of fertilizer for every 30 square feet, how much fertilizer will she need to cover the garden

D = diameter

A = area

Pi = 3.14

R = radius

First, we have to find the area of the garden.

To find A we have to divide D by 2, which will result in the radius.

17.5 / 2 = 8.75

Then we multiply R to the second power by multiplying it by itself.

8.75 x 8.75 =  76.5625

Then multiply 76.5625 by Pi.

76.5625 x 3.14 = 240.40625

The divide 240.40625 by 30.

240.40625 x 30 = 8.014

Lisa will need about 8.014 teaspoons of fertilizer to cover her garden.

I hope this helps! :)

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