Answer:
10(7a +5)
Step-by-step explanation:
The greatest common factor of the two terms is 10. Factoring that out gives ...
10(7a +5)
_____
Other possibilities for meeting the problem requirement are ...
The question is asking that X times 38% will equal to 247. So we set up the equation:

Then, we multiply both sides by

and we get the answer is
650
This was to raise revenue for the British Empire by taxing the North American colonies.