Answer:
Lol! I had this for homework for biology class too. Thymine should be 5%, and Guanine and Cytosine should both be 45% I think.
Step-by-step explanation:
Since A is 5% and T pairs with A, T should also be 5%. These two combined is 10%.
100-10 = 90
We still have two left, Guanine and Cytosine, so 90/2 = 45
That should mean G and C are both 45%.