Answer:
<h2>x = 3</h2>
Step-by-step explanation:

Answer:
16.50
Step-by-step explanation:
divide it to the upper thanks
Number of female students that got an A: 13
total number of female students: 38
13 divided by 38= 34%
The quadratic formula is 

So the solution for k is 16.
Hope that helps!