Yesterday, Craig's Doughnut Shop sold 1 3/4 times as many chocolate doughnuts as cinnamon doughnuts. If they sold 3 2/5 trays of cinnamon doughnuts, how many trays of chocolate doughnuts did they sell?

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.

How do i solve uniform motion problems?

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)