The value of b is 61°.
you solve by doing this:
add up the two given angles, 58° and 61° to get 119°. then you subtract from 180° to get 61.
1/3 of remained 2/3 is 2/9. We’ve used 1/3+2/9 = 3/9+2/9 = 5/9. So we’ve used 5/9 and we have 4/9 of the paint
The answer is D. when an exponent on the outside you multiply the exponents
20 - 21 - 10 + 5x +1= 0
5x = 10
x = 2
