Answer:
$15 for a lawn, $105 for seven lawns.
Explanation:
The question is about the direct ratio problem. Logically, you will earn more if you mow more lawn.
The scheme for this ratio is given below:
15 n_________n lawns
x_________ 1 lawn
![x=(15n*1)/(n) = 15](https://img.qammunity.org/2020/formulas/mathematics/high-school/br766brb4534cixf0rjs8m2sswqeoz2kug.png)
You will earn 15 dollars for mowing a lawn
When you mow 7 lawns, the scheme will be in this manner:
15 n__________n lawns
x__________7 lawns
![x=(15n*7)/(n)=105](https://img.qammunity.org/2020/formulas/mathematics/high-school/gwpts430tixxsccvjrjyda7fmg5kn2gxtl.png)
You will earn 105 dollars