Find each problem and write final answer in standard form. What is the leading coefficient and the constant?

What is not true about kl and mn? what is mn? (show )

An expression for the average of x 2x and 3y

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?