A different piggy bank contains quarters, dimes and nickels. The value of the coins is $13.85 and there are 18 dimes and 6 nickels. How many quarters are in the piggy bank? Let q represent the number of quarters.
Write an equation that can be used to solve for q.

(-5,-28)

i graphed to on desmos.

the answer is d on edge

step-by-step explanation:

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

inverse operation of addition