PLEASE HELP I have the slightest clue where to even start Evaluate the following
expression using x = 3:
4x + 8

Listed in the table is the percentage of students who chose each kind of juice at lunchtime. use the table to determine the measure of the central angle you would draw to represent orange juice in a circle graph

Which graph represents the solution set for the given system of inequalities? x+2y< 3 x+y> 4 3x-2y> 4

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