The width of a rectangle measures (7d + 8f) centimeters, and its length measures (2d – 3f) centimeters. Which expression represents
the perimeter, in centimeters, of the rectangle?

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.

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.

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15