Which equations have infinitely many solutions? a) x-3x=-2x=4 b) x-1/3(3x)=0 c) 1/3x-3=4+2x d) 3x+2-1/3(3x)=2+2x e) x-1/3x+2=0

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Which of the symbols correctly relates the two numbers below check all that apply 6? 6

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