Janet bought g number of packs of gum. Each pack of gum costs $0.79. Write an expression that shows how much change she will get back from paying with a $20 bill. A. 20 - 0.79g
B. 20 - 0.079g
C. 20 + 0.79g
D. 20 - 79g

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?