The 5th graders are going to paint miniature self portraits in art class. Each student has a canvas that is 5.3 cm wide and 8.5 cm tall. The art teacher has 6 bottles of white paint for the background. Each bottle covers 220.8 square cm of canvas.

There are 30 students in the class.

Does he have enough paint for all the canvases? If not, how much more does he need?

Both the red and blue line segments stretch from the center of the circle to a point on the circle. the length of the blue segment is 5. how long is the red line segment?

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.

What is the surface area of the sphere?