Can someone help me with the process to come up with the correct answer to the below problem?

I am having difficulty with the process or formula. I can change the numbers and answers but what I need to know if the process to get to the answer. If using Stat Crunch or Excel what is the process to get to the answer or can I use these program to get the answer.

Determine the area under the standard normal curve that lies to the left of

(a) Upper Z equals 0.74 commaZ=0.74, (b) Upper Z equals negative 1.44Z=1.44, (c) Upper Z equals negative 0.96Z=0.96, and(d) Upper Z equals 1.24Z=1.24.

a) The area to the left of Z equals=0.740.74 is