If a family has three pets, what is the theoretical probability that they have three dogs or three cats?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?

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