Classify this triangle by its angle

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.

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Given that abcd is a rhombus, what is the value of x?