Step-by-step explanation:

70,000,000+8,000,000+600,000+20,000+1,000+80+7 = 78,621,087
The answer would be a 5% discount.
Well you only do that when you are in the ones place and you have to regroup a 1in the tens place if you go past 19 then you are going to have to regroup a 2
Hello! I tried and I only know a few. If you have parents at home, you might have to ask them. But this is all I can do...
* The cash management is colored in Red
* The Credit and Debt Managemetn is colored in Blue.
I'm not sure, but hope this helps!