Let f(x)=-4x+7 and g(x)=10x-6. find f(g(x))

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

Which statement is true? n is a point of tangency on circle p. pt is a secant of circle p. is a secant of circle p. vu is a tangent of circle p.

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?