28 divided by 7 add 2 mutiply 3 equals ?

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 values of the variables and the lengths of the sides of this kite.

E. which of the following is not a possible probability? a. 25/100 b. 1.25 c. 1 d. 0