I’m not sure tbh,but you can use the app photomath and it should tell you!
First off, let's keep in mind that perpendicular lines have negative reciprocal slopes, hmmm so what's the slope of y = 2x + 5?
well, notice, that equation is in slope-intercept form, thus

.

so, we're really looking for the equation of a line whose slope is -1/2 and runs through 1,4.
Answer:
$12 per Pizza
Step-by-step explanation:
216 divided by 18=12