Answer:
72 yellow balls
Step-by-step explanation:
80% of 90 is (0.80*90) = 72 yellow balls.
Answer:
The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
This is wrong.
It's supposed to be -4/15.
But try -4/5.
I think the Answer is 44 copies per minute
143/3.25 = 44
