Set B is a subset of set A. A = { 2, 3, 5, 7, 11 }

B = { 3, 7, 9, 11 }

Is it true or false

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.

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Put the equation in slope intercept form by solving for y