Answer:
80
Step-by-step explanation:
I counted any number that had the tens place <u>80</u>
D cause u can round 8 to 10
Answer:
4200 the answer is d. kilo is 1000
This is essentially asking how many different ways to partition 6 into 3 segments.
I am assuming "no ball in a box" is not allowed.
6 can be partitioned as
(4,1,1), (3,2,1), and (2,2,2)
So, calculate each partition, we get
(6 choose 4) + (6 choose 3)*(3 choose 2) + (6 choose 2) * (4 choose 2)
= 15 + 20*3 + 15*6
=165
