Jim adds 20 to it, then doubles it and gets an answer of 99.2. what was the original number?

(n+20)*2 = 99.2

distribute

2n + 40 = 99.2

subtract 40 from each side

2n = 59.2

divide each side by 2

n = 29.6

all you have to do is multiply them both to see how many out comes you can put:

3 x 2 = 6

you can make 6 diferent combinations of crusts and toppings.

~batmans wife dun dun

6+6=12 so that just tells you what it is one half is 6 the next one is 6