Determine if the graph is symmetric about the x-axis, the y-axis, or the origin.

r = 5 + 4 cos θ

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

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.

Two rectangular prisms have the same volume. the area of the base of the blue prism is 418 4 1 8 square units. the area of the base of the red prism is one-half that of the blue prism. which statement is true?