Answer:
C. 15
Step-by-step explanation:
The following proportional can be set-up for the figure given:

Solve for x


Cross multiply


15 = 6x - 5x
15 = x
x = 15
Answer: C all real numbers
Step-by-step explanation:
I got the answer right on Edge
Yes 10/3 is an improper fraction
to make it mixed number:
3 cannot fully go into ten but close enough to where: it will be 9
3 1/3 is answer