Ruth's class collected 7 pounds of food for the food drive. sasha's class collected 8 1/3 times as much food as ruth's class. how many pounds of food did sasha's class collect?

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?