Answer:

Step-by-step explanation:
Given

Required
Determine the job time in minutes
To do this, we simply convert the time to minutes.


So, we have:


<em>Hence, the job time in minutes is 420 minutes</em>
Answer:
-7
Step-by-step explanation:
-8 = (-1/4)(4) + b
-8 = -1 + b
b = -7
A complex fraction means that there must be a fraction in the numerator or denomenator or both
so
some are


Answer:
0.624
Step-by-step explanation:
Given that:
Number of copiers with the company = 4
It is a binomial experiment.
Probability that on a given day, one copier will break down = 
= 0.46
= 0.54
<em>Formula for Binomial probability:
</em>

We have to find 



Addition problems that need annex zeros:
Choice A. - 0.54 + 12.1
Choice C. - 25.59 + 1.2
Choice D. - 23.04 + 124.1 + 34.06
Hope I was able to help! :)