Help please this is for a math test and I don’t have much times

Given the points a(-2, 1) and b(8, 6), find the coordinates of the point c on directed line segment ab, that partitions ab in the ration 2: 3.

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Bernice paid $162 in interest on a loan of $1800 borrowed at 6%. how long did it take her to pay the loan off?