3. A store offers 3 brands of tee-shirts (Old Navy, Gap, Express) in 6 colors (red, green, blue, orange, pink, Black) each in either long sleeve or short sleeve.
a. Create a tree diagram to represent the sample space of the shirts
b. Find the probability of buying a green shirt

Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.