Answer:
x=4
Step-by-step explanation:
See attachment for explanation
the answer would be E because if you round answer E to 3mph and divide by 2 you get 1.5 and a hour is 60 minutes divide that by 2 and you get 30 minutes however you walked slightly slower so it would take 5 minutes longer.
The answer is -0.5 or -1/2
440=80+x, subtract 80 (Kcal) from the total amount of calories to get the burger Kcal