What is the scale factor of 4 and 6 reduced by 1/2?

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

Identify the number 127 as a rational or irrational. explain