20. State whether the conjecture is true or false. If false, provide a counterexample.
Subtraction of whole numbers is commutative.

"you know, playing tennis is healthier than watching a tennis match on television," katya remarked to her couch potato brother. in this sentence, healthier is a/an a. superlative. b. comparative. c. positive form. d. adverb.

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.