Base B (aka p) is equivalent to 18
p=18
Hey there, Bulgogi!
The correct answer will be the first one since [I'm assuming] you know that to calculate the percentage of something, it's the amount of that something divided by the total amount but since only 30 students voted [12+18] multiplied by 100.
So, we are calculating the percentage on votes and 12 students voted for Candidate A so our Numerator will be 12 and our Denominator will be the total amount of student who voted, so 30 [or 12+18]
Once put into a fraction, we will get

which would be equals to 2/5 or 0.4. Now we multiply by 100 and we get a total of 40% for Candidate A.
Thank you for using Brainly.
See you soon!
Answer: 
Step-by-step explanation:
<u>Given information</u>


<u>Given the formula for the slope</u>

<u>Substitute values into the formula</u>

<u>Simplify the numerator and the denominator</u>


<u />
<u>Simplify the fraction</u>


Hope this helps!! :)
Please let me know if you have any questions