Make up a multiplication problem in which the factors are both decimals and the product can be expressed as "a number between 8 and 15".
Many examples can be used for this such as 3.5×4.2. This answer lands between 8 and 15.
3.13.1 works
3.23.2 also works
π² also works
8.1*1 is another solution
in short, there are an infinite number of possibilities