A soccer team is having a car wash. The team spent $45 on supplies. They earned $295, including tips. The team's profit is the amount the team made after paying for supplies. Use a sum of integers to find the team's profit.

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters