Mellie

I don't understand. Sorry Alan.

32+10=42 (Paul's age in 10 years)

that's all I can get through. I think there needs to be more information included. For example, all three sons are the same age, two of the sons are greater in age by two than the other, the oldest son is three years older than middle child, etc.

$${\mathtt{9.5}}{\mathtt{\,\times\,}}{\mathtt{13}} = {\frac{{\mathtt{247}}}{{\mathtt{2}}}} = {\mathtt{123.5}}$$

123 1/2

9 1/2*13

Make the mixed number into an improper fraction

19*13=247    2*1=2

247/2=123 1/2

The answer was 47/72 (what Alan had said before) thanks everybody for your hard work on this question.

Haha nice label. 

Formula:

Delta(change in) y/Delta (change in) x=m

-4-5/4--2=m

-9/6=m

-3/2=m. 

Hopefully this is correct.

You want to create a proportion. 

15/10=x/600

To find x, cross multiply each side. 

So, 15*600=100x

9000=100x

90=x