Answer:
There are 14 problems worth 5 points and 15 problems worth 2 points.
Step-by-step explanation:
Hope this helped have a good day :)
I believe the value of x would be 20.

Multiply the numerator and denominator by
:

Since
, we have
. So substituting the values of <em>a</em>, <em>b</em>, and <em>c</em> gives us
