3500 calories - 1 pond if you burn 450 mor each day how long it will take to lose 1 pond? 10?

You have to divide 3500 by 450 that get you 7.7 repeating so you just round that to 8

So for 1 pound it will take about 8 days

then for ten pounds you need to multiply 7.7 repeating by 10 which equals 77.7 repeating rounds to 78

So it will take about 78 days to lose 10 pounds