Plz help! Detailed explanation, please!! Thank You!

72

Step-by-step explanation:

since the 4 is a triangle you must divide the 4 by 2 to get 2 then add 2 to 10 to get 12 and multiply 12 by 6 to get 72. Make sense?

The complete question in the attached figurestep 1find the slope (m)  of the equation of the line  with 2 pointspoint a (0, 422000) and    b (16,0)m=(y2-y1)/(x2-x1)=(0-422000)/(16-0)=-422000/16=-26375 gallons/hourthe value is negative because  is decreasing as time goes byy=mx+bwith the point b (16,0)0=-26375*16+b--> b=422000y=-26375x+422000[gasoline in jet in gallons]=-26375*[flight time in hours]+422000the answer is  the jet's average gas consumption, in gallons per hour, during the sixteen hour is 26375 gallons/hour