Fred says that 1-2 and 7-8 are equivalent fractions. Draw area models for 1-2 and 7-8 to show if freds statement is correct. name two fraction's that you know are equipment to 1-2

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?