Ytterbium decays 50% every 4.2 days. how much of an 80g sample would be left after 54.6 days? use exponential decay formula.
a. 67 g
b. 53,211.33 g
c.41.76 g
d. 9.80 g
e. 0.12 g

The sum of two numbers is 86, and their difference is 20. find the two numbers

() at a farm, animals are fed bales of hay and buckets of gain.each bale of hay is in the shape of a rectangular prism.the base side lengths 2 feet and 3 feet,and the height is 5 feet. each bucket of grain is a cylinder with diameter of 3 feet. the height of the bucket is 5 feet as the height of bale. a. which is larger in area, the rectangular base of the bale or the circular base of the bucket? explain how you know b. which is larger in volume, the bale or the bucket? explain how you know

How many grams the dog will eat in 3 days?