3.4X10^-5 in standard form

In the equations, a and b represent the price per night for a room in hotel a and hotel b, respectively, w weeks after september 1 last autumn. what was the price per night in hotel a when it was equal to the price per night in hotel b? a = 240 − 20w b = 320 − 30w

Asphere has a diameter of 10 in. what is the volume of the sphere?

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)