The decimal form of 1/3 is a repeating decimal. Are all the multiples of 1/3 also repeating decimals? Explain. plz help

No, it's not impossible to write in decimal form.  There is a convention in place to address that problem.  Specifically, the repeating part of the decimal expansion is written only once, with a bar above the digits that represent the repeating portion.  

1/3 = 0.3 with a bar above the 3.  

1/7 = 0.142857 with a bar above the 142857.

351/700 = 0.50142857 with a bar above the 142857

coin flip

non-answer:

choosing

sorry if this isnt what you're looking for i dont really understand the question