Answer:
probability the spy is able to unlock the tablet on his first try.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
Desired outcomes:
1 correct password, so 
Total outcomes:
Nine-digit codes.
For each digit, there are 10 possible outcomes. So

What is the probability the spy is able to unlock the tablet on his first try?

probability the spy is able to unlock the tablet on his first try.
First find the Unit Rate by dividing 98/8 which is : $12.25 per hour. Then divide $441 by $12.25. The answer is 36. You would have to work 36 hours to earn $441.
For A) It would be the fourth one.
For B) It would be the first one.
B C D are exponential functions