Solve for a : -2a-7a=0

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Match the vocabulary to the proper definition. in probability, two events in which 1. conditional probability the outcome of one event is independent of the outcome of a second event. 2. dependent events in probability, two events in which the outcome of one event is dependent on the outcome of a second event. the probability of an event in which the outcome of the event is conditional on the outcome of one or more different events. 3. independent events

Find the measure of angle a in the following triangle