Answer:
Katie needs to pay $27.9.
Step-by-step explanation:
Given;
Cost of per foot = $2.25
Number of flowers in her yard = 12.4 square foot
We need to find how much she needs to pay.
Solution:
Now we know that;
[tex]1\ ft^2 = \$2.25[/tex]
So for [tex]12.4 ft^2[/tex] = Cost for [tex]12.4 ft^2[/tex] .
By using Unitary method we get;
Cost for [tex]12.4 ft^2[/tex] = [tex]2.25\times12.4= \$27.9[/tex]
Hence Katie needs to pay $27.9.