Answer:
5x-7 has to equal to something smaller than 13
5x-7=5
21:3
9:3
3:1
there all a 3:1 ratio
Answer:
Step-by-step explanation:
what points do you want me to plot?
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.