Use the table to write a linear function that relates y to x

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

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?