Answer:
4a + 13b
Step-by-step explanation:
-2a + 5b + 6a + 8b
combine like terms:
4a + 13b
Answer:
56
Step-by-step explanation:
1:8= 7:?
1*?=7
/1 /1
1*7=7
8*7=56
1:8 = 7:56
Answer:
1221 - 321 = 900
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
this is because it is right
There are 4 possible letters to start with.
The pass word is 3 letters long.
The first letter can be A, B, C, D = 4 different letters.
The 2nd letter can be 4 - 1 = 3 letters ( Can't have repeats)
The 3rd letter can be 3-1 = 2 letters ( no repeats)
Number of possible passwords = 4 x 3 x 2 = 24
