Plz asap cross sections of 3d figures

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%