He/she idk, got a higher score on the second test. How you do it is divide the score by the number out of it so like 19 divided by 25. Umm for the ratio, I'm not really sure, I guess you just do 19:25 and 17:20
I think it is 28 but, i'm not completely sure. Hopes it helps
Answer:
-
Step-by-step explanation:
Radical roots occur as conjugate pairs.
Thus if x = is a root then - is also a root