2+2 I get it if you dont get it right

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?

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

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.