Which equation can be used to find the value of a?

a.

a – 42 = 91

b.

42 + a = 91

c.

91 + a = 42

d.

a – 91 = 42

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.