2. The mean of four numbers is 42.5. If three of the numbers are 28, 56, and 12, what is the value of the fourth number?

Select the lengths in centimeters that would form a right triangle

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made. determine an equation to model his situation?

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)