We have the following:

solving for x

The solution of x is equal to 28, therefore 12 is not a solution of the equation
(predicted value - exact value)/exact value * 100
(31 - 34)/34 * 100 = 8.8%
Answer:
k=5b/4−3/4
Step-by-step explanation:
3-3k+7k=5b
Isolate the variable by dividing each side by factors that don't contain the variable.
k=5b/4−3/4
-hope it helps
The answer is c becuse there’s only 2 cs and 3 of the others