Which is the net for this rectangular prism?

In the 30-60-90 triangle below side s has a length of and side r has a length

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.

Plz hurry evaluate the expression a+b where a=8 and b=19