Asail is in the form of a right triangle. the angle at its lower edge is 57o. which is the size of the angle formed at the top of the sail?

The monetary value earned for selling goods or services to customers is called a.) revenue b.) assets c.) money d.) accounting

Consider the set of all four-digit positive integers less than 2000 whose digits have a sum of 24. what is the median of this set of integers?

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?