Last week, Shane worked 45 hours. This week he worked 60 hours. Find the ratio of the increase in hours to the previous week of hours.

Jane is cooking beans and rice for dinner tonight. she has 4 cans of black beans, 6 cans of red beans, and 3 cans of garbanzo beans in her cupboard. if she grabs a can of beans without looking at the label, what is the probability of her making black beans and rice for dinner?