Need with this question: write the equation of the parabola with focus (5,2) and directrix x=1

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.

9/10 divide by -3/15 as a mixed number

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out