At the gym 15 females and 30 males participated in a weight strength class if 40% of the females and 20% of the males also participated in boxing class how many participants from the strength class also participated in the boxing class?

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

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]