The distance a spring will stretch varies directly with how much weight is attached to the spring. if a spring stretches 6 inches with 80 pounds attached, how far will it stretch with 55 pounds attached? round to the nearest tenth of an inch.

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?