Graph the system of linear equations.
{x=0
{y=1/2
Which of the following points is the one true solution?
A)( 1/2,0)
B)(1/2,1/2)
C)(0, 0)
D)(0,1/2)

Me answer number 3plz explain how you do it

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

Kayla has a $500 budget for the school party.she paid $150 for the decorations.food will cost $5.50 per student. what inequality represents the number of students,s, that can attend the party?