Square sandbox with sides 3 feet long. she wants to put sand 0.85 feet deep in the box. what is the exact measure, in cubic feet of sand, tat maija needs?

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?