Determine and prove the formula for 1 1 • 2 + 1 2 • 3 + 1 3 • 4 + . . + 1 n ( n + 1 )

Determine domain and range, largest open interval, and intervals which function is continuous.

Find the distance between c and d on the number line c=3 and d=11

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?