Find the area of the circle. Round to the nearest hundredth (3.14 for pie)

​

The weekly revenue for a company is r = 3p^2 + 60p + 1060, where p is the price of the company's product. what price will result in a revenue of $1200.

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

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /