Hello, I'm going to attach all of the questions as pictures, please also shows easy to understand steps. Still, if specific problems need a little explanation, then a small description would be much appreciated, I hope that's not too much to ask for but thanks in advance!

Question 16 6 pts On a standard normal curve: a) Find the area to the left of z = 0.87 (three decimal places) b) Find the area to the right of z = -1.21 (same)