Julio is paid 1.3 times his normal hourly rate for each hour he works over 29 hours in a week. last week he worked 35 hours and earned $456.32

In this case, Julio works for 35 hours which mean 6 hours more than 29 hours. He gets 1.3 times rate for this 6 hours and normal rate for the first 29 hours. Then the salary he would get should be: 29 X + 1.3X(6)= 29X + 7.8X= 36.8 X. 

Julio gets $456.32 which was 36.8 times of his hourly rate. The hourly rate would be: $456.32 / 36.8= $12.4/hour

H is what I would go with . I don't think it's k though.