Use the Normal model N(103,10) for the IQ’s of sample participant

Use the Normal model N(103,10) for the IQ’s of sample participant

Subject: Mathematics    / Statistics
Question

Use the Normal model N(103,10) for the IQ’s of sample participants. answer all three questions

A) what IQ represents the 22nd percentile?

B) What IQ represents the 97th percentile?

C) What’s the IQR of the IQ’s?

Also on the TI-84 calculator please tell me how to find the z-score.