Answer:
Option B) (1, 16.5)
Explanation:
Let
x ----> the number of lawns mowed
y ----> the amount earned in dollars
we know that
To find out the unit rate divide the total amount earned by the number of lawns mowed
so

That means ---> The amount earned by mowed 1 lawn is $16,50
therefore
The ordered pair is (1,16.50)