Find the measure of the central angle please help and explain

The volume of a cube is 8 in to the 3rd power. how long is each side?

True or false look at the picture pls : /

Fa bus driver leaves her first stop by 7: 00 a.m., her route will take less than 37 minutes. if she leaves after 7: 00 a.m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?