15 fish per fish tank

1. are the triangles similar and if so why? what is the value of x? show your work.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

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.