Kyle's height increased 17 % last year and 12% this year. What is the total percent increase?

31.04%

Step-by-step explanation:

So he increased 17%, then increased 12%.

When he increased by 17%, his height was 117%, relative to his former height. 12% of 117% is 14.04%

So he increase 17%, then increased 14.04% (of his original height) so his total growth was 31.04%