Solve the equation for .

Which system of linear inequalities is graphed? can somebody pleasssse

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

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !