How to work out the multiplication of decimals ​

To multiply decimals, first multiply as if there is no decimal. Next, count the number of digits after the decimal in each factor.

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i