Answer:
27% .
Step-by-step explanation:
A (adenine) pairs with T (thymine) and has the same percentage. C (cytosine) pairs with G (guanine) and they both have the same percentage. In this case, the percentage of T (thymine) is 23%. So A (adenine) will also have 23%. This leaves the remaining percentage at 54% (100-46). So G and C will have 27% each (totaling 54%).