Alhondro wants to determine the average shoe size of all of male students in his school

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

How can you construct perpendicular lines and prove theorems about perpendicular lines