Gabrielle wants to put a border around her garden. It costs $1.50 per yard for the materials. Use 1.50 (2l+2w) where l is the length and w is the width of her garden, to find the cost for a garden that has a length of 4 yards and a width of 3 yards.

Answer 1

To find the cost for a garden that has a length of 4 yards and a width of 3 yards, we can substitute the values into the formula:

Cost = 1.50(2l+2w)
Cost = 1.50(2(4)+2(3))

First, we calculate the values inside the parentheses:
Cost = 1.50(8+6)

Then, we perform the addition inside the parentheses:
Cost = 1.50(14)

Finally, we multiply the result by 1.50:
Cost = $21