Stephanie has 3 3/4 bags of soil to put in her

garden. Each bag of soil will cover 125 3/10 ft^2 .
How many square feet will Stephanie be able
to cover if she uses all these bags of soil?

To find the total area Stephanie will be able to cover, we need to multiply the number of bags by the area each bag covers.

Stephanie has 3 3/4 bags of soil.
Since there are 4 parts in a whole, Stephanie has 3 + 3/4 = <<3+3/4=3.75>>3.75 bags of soil.

Each bag of soil will cover 125 3/10 ft^2.
Converting the mixed number to an improper fraction, Stephanie will cover 125 + 3/10 = 125 3/10 = 1253/10 ft^2 per bag.

To find the total area Stephanie will cover, we multiply the number of bags by the area each bag covers: 3.75 bags * 1253/10 ft^2/bag = 3750/10 ft^2 = 375 ft^2.

Stephanie will be able to cover 375 square feet. Answer: \boxed{375}.

To find out how many square feet Stephanie will be able to cover, we need to multiply the number of bags of soil by the coverage area of each bag.

Step 1: Convert the mixed number, 3 3/4, into an improper fraction.
3 3/4 = (4 * 3 + 3)/4 = 15/4

Step 2: Multiply the number of bags of soil by the coverage area of each bag.
15/4 * 125 3/10 = (15 * 125 + 4 * 3)/(4 * 10) = (1875 + 12)/40 = 1887/40

Step 3: Simplify the fraction, if possible.
1887/40 = 47 7/40

So, Stephanie will be able to cover an area of 47 7/40 square feet if she uses all these bags of soil.