Alice has eight good behavior stars and
earns a new one each week. mack has
two good behavior stars and earns two
new ones each week.
in how many weeks will they have the
same number of good behavior stars?

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

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

If the discriminant if a quadratic equation is 4 which statement describes the roots?