Need help pleas

M. eeting ID= 878 881 1642
Pas. scode= ivH1bj

What is the smallest integer n such that n\sqrt{2} is greater than 20

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan for ?

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?