lost spent two hours at home to study for his academic. aside from studying, he also helps his mother in cleaning the house. for every house hold chores, he spends 20 minutes to finish each task. if he does 6 household chores how many hours he did he spend altogether in cleaning

a. write linear function that will represent the problem
b. if he spent 3 hours in tot of cleaning and studying, how many household chores did he do?​