63/x=90/100
5670=100x
56.7
Answer: x-6
Explanation: x^2 is a DOTS, or difference of two squares. 36 is a perfect square and x^2 is a perfect square, and you are finding the difference. Therefore, you can do (x+6)(x-6). This works with any number. If there was x^2-16, it could be factored to (x+4)(x-4)
Answer is 199 because it adds up by 8 after 12 at the beggining
Answer I don't know
Step-by-step explanation:
and i don't know
