The number of permutations of the 25 letters taken 2 at a time (with repetitions) is:

The number of permutations of the 9 digits taken 4 at a time (with repetitions) is:

Each permutation of letters can be taken with each permutation of digits, therefore the total number of possible passwords is:
Step-by-step explanation:

Answer:
A
Step-by-step explanation:
basta letter A sagot dyan
Plot a point at the y-intercept of -2 or y = -2
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From there make a straight horizontal line
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Then Shade the upper-half of that line one color This shaded part stands for
Y > -2
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Shade the lower half a different color, this stands for y ≤ 6
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That should be it!
Answer:
The company can manufacture 135 boxes of stuffed animals for $5000
Step-by-step explanation:
To find b, substitute $5000 for c(x), so
Then subtract 2300 from both sides of the equation, so
- 5000 (-2300) = 20b + 2300 (-2300)
- 2700 = 20b
Finally divide both sides of the equation by 20, so
To check your answer substitute 135 in as b...
- c(x) = 20(135) + 2300
- c(x) = 5000