Answer:
$15 for a lawn, $105 for seven lawns.
Step-by-step 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=\frac{15n*1}{n} = 15](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B15n%2A1%7D%7Bn%7D%20%3D%2015)
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=\frac{15n*7}{n}=105](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B15n%2A7%7D%7Bn%7D%3D105)
You will earn 105 dollars