15/9=3/2 solve please

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

Use the ratio test to determine whether ∑n=14∞n+2n! converges or diverges. (a) find the ratio of successive terms. write your answer as a fully simplified fraction. for n≥14, limn→∞∣∣∣an+1an∣∣∣=limn→∞.

What multiplys to be 1 but adds up to be 4