The pattern is adding 8 to the previous number.
ex. 7+8=15, 15+8=23, 23+8=31, 31+8=39
Now for the next 2 terms:
39+8=47
47+8=55
Hope this helps!
The answer should be 3/2. if x/y = 2/3 then it should be assumed x is equal to 2 and y is equal to 3, therefore if you flip it then you simply flip 2/3 into 3/2 and arrive at the answer.
you can estimate 17/18 - 3/7 = 65/126 to estimate the answer to 70/130. i think that's what you are asking
The radical is 3sqrt(x^18)
18/2=9
so, the radical is
3x^9
That is the standard form
