−5−4.25⋅−7.4
Writing this to meet 20 character requirement
Multiply the binomials:
(3x + 4)(5x - 2)

Final answer
Option B is the final answer
C ⠀ ⠀ ⠀ ⠀ ⠀
The points between 0 and 1 increase in increments of 1/6th
MAB = 360 - 255 = 105
<ADB = 1/2(mAB) = 1/2(105) = 52.5
Answer
52.5°