If the probability of an event is 4/7, what is its complement?

Which expression is equivalent to 4 square root 6 divided by 3 root 2

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

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?