Step-by-step explanation:
C = 180 - 112 = 68°
A = 180 - 68 - 51 = 61°
B = 180 - 61 = 119°
Another way :
We know that B = C + 51 ==> B = 68 + 51 = 119°
A tree diagram that represents the problem is shown below
The probability of a student being an out-of-state-resident and a female is 0.58 × 0.15 = 0.1275 or 12.75%
Correct answer would be b. x-10. You can check this by writing out (x-10) and writing the other factor out. Then simplify (factor) out everything and you will get x^2 - 21x + 110.