Mega movies hote a fil premiere on friday night. they charged $7 for adults and $5 for children. one hundred twenty-three adults and children attended, and $829 was made in ticket sales. how many children and how many adults went to the film premiere?

16 children; 107 adults

Step-by-step explanation:

the answer for this question is 38

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c