c = cost
h = # of half-dozens ordered
c = $8.50h + $1 is the correct answer.
Answer:
option D

Step-by-step explanation:
An expression is undefined when you get division by zero or in simple words when denominator is zero.
Now we will solve each expression one be one by plugging value of x = 0
<h3>1)</h3><h3>

</h3>

-4/-3 = 4/3
<h3>2)</h3><h3>

</h3>

0/-3 = 0
<h3>3)</h3>


6/1
6
<h3>4)</h3>


<h3>-8/0</h3><h3>undefined</h3>
For this Q:
mean=31
st.dev.=0.8
x=32
Calculate z-score:
z=(x-m)/s = (32-31)/0.8=1.25
This z-score value corresponding to the probability of 0.8944
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Protons is the answer that makes the most sense