How to write 10 x (2.5 13.5) in words

Need on this one asap im almost done with this subject

To finance her community college education, sarah takes out a loan for $2900. after a year sarah decides to pay off the interest, which is 4% of $2900. how much will she pay

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6