I need help pls
my teacher doesn't help..

Average salary for a medical assistant is $31,220 which is a 20% income tax bracket how much money would they pay in income tax?

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )

What is the volume of a cone with a height of 6 cm in the radius of 2 cm