Answer:
X^2-x-12
Step-by-step explanation:
FOIL
First, Outside, Inside, Last
First: X*X=X^2
Outside: x*-4=-4x
Inside: x*3=3x
Last:3*-4=-12
All together: X^2-4x+3x-12
Simplify: X^2-x-12
Replace F in the equation with 113.
5/9(113-32)
5/9(81)
5 * 81 = 405
405 / 9 = 45 degrees Celcius
So one trip = 4 km
two trips = 8
8 + 4 = 12
i believe your answer is 12
Thanks!