4.40 because if you subtract 22.50 and 18.50 you get 4.40
Hope I helped u
20) Answer is: x=76
21) Answer is x=15
There are 6! possible permutations of the blue books, 2 possible permutations of the red books, 4! possible permutations of the green books and 3! possible permutations of the three color groups. therefore the total number of ways of arranging the books is given by:
Answer:
Step-by-step explanation:
Given that,
The arithmetic sequence is :
-28,-13,2
First term = -28
Common difference = -13-(-28) = 15
We need to find the 64th term of the sequence. The nth term of the sequence is given by :
Put all the values,
So, the 64th term of the sequence is equal to 917.