You work two jobs. You earn $9.80 per hour as a salesperson and $7.84 per hour stocking shelves. Your combined earnings this month are $156.80. Let x represent the number of hours worked stocking shelves and let y represent the number of hours worked in sales. can you give me the y=mx+b form

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.