Answer:
ohh!!!! this is very hard....
if the girls are "g" and the boys are "b"
g + b = 13
b = g + 7 <--- 7 more boys than girls

Answer:
7
Step-by-step explanation:
Count the units (Squares) from the first point to the second and you will see that it is 7 units away.
If there only one person then the total would be $40.25