Answer:
b
Step-by-step explanation:
b because it say's 1/5 and 7 it do not say negative so yea
Answer:

Step-by-step explanation:
GIVEN: two two-letter passwords can be formed from the letters A, B, C, D, E, F, G and H.
TO FIND: How many different two two-letter passwords can be formed if no repetition of letters is allowed.
SOLUTION:
Total number of different letters 
for two two-letter passwords
different are required.
Number of ways of selecting
different letters from
letters


Hence there are
different two-letter passwords can be formed using
letters.
I believe it is 2, not 100 percent sure but I think its right
Answer:
dylan has more water
Step-by-step explanation:
1000 milliliters = 1 liter
therefore 600 milliliters = .6 liters
1 - .6 = .4
the liter has .4 more liters of water or 400 more milliliters
Answer:
3
Step-by-step explanation:
plug in (-1) for x
-2(-1) + 1
2 + 1
3