-5+4[3(-8+4)-(4-3)]
Please show work :)

Divide. write in simplest form 41/6 divided by 10

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

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?