Question

Lena is going to cover her entire garden with topsoil. The garden is 36 feet long by 22 feet wide. A bag of topsoil costs $3 and covers 300 square feet of area. How much will the topsoil for Lena's garden cost?

Answer 1

The garden is 792 ft2 so if i'm wrong that should at least give you something to go on
$6.64?

Answer 2

So what you first want to find is the area of her garden.

You can do this with the formula length * width

In this case it would be:

36 * 22

Which is equal to 792.

Now, you just want to find how many bags of topsoil she needs.

Since I'm assuming you cannot buy half of a bag of topsoil, she will end up buying extra topsoil, because you can't just cut a bag of topsoil in half and then take some of it, then buy that.

So to have enough, she must buy 3 bags of top soil, which would end up costing $9.