How many relay teams of 4 members can be chosen from a 6 member team to run in a relay race?

Find the value of x for which line a is parallel to line b

Find the amplitude of a sinusoidal function that models this temperature variation

At a pizza shop 70% of the customers order a pizza 25% of the customers order a salad and 15% of the customers order both a pizza and a salad if s customer is chosen at random what is the probability that he or she orders either a pizza or a salad