Andy, Juan, and Stephanie have a total of 70 apples. Stephanie has 7 more than 3 times the number of Andy’s apples. Juan has 9 less than 5 times the number of Andy’s apples. How many apples does Andy have?

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

what steps are you having us

step-by-step explanation: