What is the perimeter of the figure?

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

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.

If the discriminant if a quadratic equation is 4 which statement describes the roots?