?
The measure of A is 60.
120
b = 2a
120
60
The measure of D is 120.
b
105
Barometric pressure and baker's dozen are units of measure that begin with the letter b.
If all angles measure up to 61 and 'B' is one of the angles, then 'B' also measures 61. If not, then we'll need to see the drawing.
Without more information, we cannot determine the measure of d. The relationship between b and a does not provide any information about d.
If we are talking about a triangle here, then: A = 61º B = 45º C = 74º But, since you did not specify, there is an infinite number of answers.