NEED HELP ON THIS PROBLEM ASAP THX

Need to increase the numbers of customers i talk to daily by 20% how many customers do i need to talk to if i talk to a average of 8 customers per hour during an 8 hour shift

Prove that 16^4-2^13-4^5 is divisible by 11.

What is the area of the composite figure whose vertices have the following coordinates? (−2, −2) , (4, −2) , (5, 1) , (2, 3) , (−1, 1) enter your answer in the box.