Malcolm buys a 5/6 pound bag of black beans and a 3/4 pound bag of pinto beans how many pounds of beans does Malcolm have in all. I´m not sure whether to add or multiply

Step-by-step explanation:

U would add it even though it looks like u need to multiply but u don’t. In order to add, u need to find the lcd of them both which is 12. 10/12 + 9/12. 19/12 or 1 7/12.

step-by-step explanation:

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64