Final answer:
Without additional context, the measure of A cannot be determined. The measure of 2B in degrees, given B as (5y - 3), is (10y - 6)°.
Step-by-step explanation:
The measure of A in degrees is not provided directly, but we know that B is (3y + 27)°. If there is a relationship given between A and B within a geometric context like complementary or supplementary angles, this could help determine A. For instance, if A and B are complementary angles, then A would be (3y - 27)° because complementary angles add up to 90°. If they are supplementary, A would be (177 - 3y)° because supplementary angles add up to 180°. Without additional context, we cannot determine A's value among the provided options.
As for the measure of 2B in degrees, when B is given as (5y - 3), to double B, you simply multiply the entire expression by 2, resulting in (10y - 6)°.