Machine Design - Bearings

A shaft carries a helical spur gear. Which one of the following bearings can NOT be used to support it?

For a ball bearing, the fatigue life in millions of revolutions is given by L = (C/P)^n, where P is the constant applied load and C is the basic dynamic load rating. Which one of the following statements is TRUE?

A self-aligning ball bearing has a basic dynamic load rating (C10, for $10^6$ revolutions) of 35 kN. If the equivalent radial load on the bearing is 45 kN, the expected life (in $10^6$ revolutions) is