Answer:
Here is a method that makes it seem easier.
Write down any number between 51 and 59.
For example you might choose 57 = 3*19
Divide both numbers by 10 and write the answer as
0.3 * 1.9 = 0.57
Step-by-step explanation:
7,14,21,28,35,42,49,56,63,70,77,84,91,98,105,112,119,126,133