May I please receive help?
Please?

In a school 2/3 of the students study a language of those who study a language 2/5 study french

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

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2