Write a formula expressing the information:

i)Rose paid twice as much as Mike
I used R for Rose and M for Mike
The formula I cam up with is R=2M

ii)Taxes are 6 percent of income [Use T and x]
So I wrote it like this T(0.06)/X
iii)There are twenty times as many students as professors.
I wrote it as 20S+P

Can you please tell me if they are correct ??? if they are wrong explain plzzzzzzzzzzzzzzzz

(i) ok

(ii) T = 0.06x
(iii) S = 20P