Define the sum of the quoeten of the diffence of the vaule of 12 and 7

It says factor each expression completely 8y+48

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?

Factor the polynomial. b^2 + 4b + 4