What is the value of t 18/45 = 2/t 3 5

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

10% of 1,900,000. show me how you got the answer

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2