Answer:
The call premium is $35
Step-by-step explanation:
Hi, the call premium is found as follows.


So, the call premium is $35.
Best of luck.
Answer:
I believe it is D
Step-by-step explanation:
If I am correct please mark Brainlyiest
Answer:
Sorry, I need more information. What's the rest of the question?
Option 1. The equation that represents the direct variation that exists between a and b is b = –a.
<h3>How to find the direct variation here</h3>
The direct variation is of this form y ∝ x
This gives the equation
y = kx
The constant is k
From our question we have
b ∝ a so b = ka
b = 
a = 
Remember that b = ka

This would cancel out to
1 = -k
or k = -1
Hence the equation would be written as
b = -a
Read more on direct variation here:
brainly.com/question/9983911
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Answer:
These outcomes are disjoint.
Step-by-step explanation:
(a) Are the outcomes none, small, and big disjoint
If they are disjoint, the sum of the total number of each has to be equals to the number of emails.
We have:
3921 emails.
549 with no numbers.
2827 with only one or more small numbers
545 had at least one big number.
549 + 2827 + 545 = 3921
Since the sum is equals to the number of emails, these outcomes are disjoint.