Ok so you spent 19 dollars the difference between prices is 5 dollars and your answer would be 12 and 7. If you need any help let me know.
The subtraction expression is solved to get -27 gives while the equivalent addition expression is -65 + 35 evaluating gives -47
<h3>What is subtraction and addition?</h3>
Subtraction refers taking away a value from a certain value while addition implies increasing a value by a certain value
<u>Given data</u>
-15 - 12
solving we have
-15 - 12 = -27
equivalent addition
-62 + 35
evaluating the equivalent addition
-65 + 35 = --27
Read more on addition and subtraction here: brainly.com/question/4721701
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600,<span>We round the number up to the nearest hundred if the last two digits in the number are 50 or above.</span>
Answer:
a) 3.47% probability that there will be exactly 15 arrivals.
b) 58.31% probability that there are no more than 10 arrivals.
Step-by-step explanation:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

In which
x is the number of sucesses
e = 2.71828 is the Euler number
is the mean in the given time interval.
If the mean number of arrivals is 10
This means that 
(a) that there will be exactly 15 arrivals?
This is P(X = 15). So


3.47% probability that there will be exactly 15 arrivals.
(b) no more than 10 arrivals?
This is 














58.31% probability that there are no more than 10 arrivals.
28 would be, or as it’s multiplied by 17, it would be 476