Answer:
86
Step-by-step explanation:
Mean scores of first test = 
Standard deviation of first test scores = 
Mean scores of second test = 
Standard deviation of second test scores = 
We have to find if a student scores 29 on his first test, what will be his equivalent score on the second test. The equivalent scores must have the same z-scores. So we have to find the z-score from 1st test and calculate how much scores in second test would result in that z-score.
The formula for z-score is:

Calculating the z-score for the 29 scores in first test, we get:

This means, the equivalent scores in second test must have the same z-scores.
i.e for second test:

Rounding of to nearest integer, the equivalent scores in the second test would be 86.