Use the Law of Sines (sina/A=sinb/B=sinc/C for any triangle)
x/sin90=12/sin19
x=12/sin19
x≈36.86 to nearest hundredth
Solve for x in each set of parentheses by setting them to 0:
X -8 = 0
X = 8
X+9 = 0
X =-9
You have two x intercepts (8,0) and (-9,0)
You didn’t list any choices to pick from but it would be either if the ones above.
For red there would be 1/22 and for blue there would be 1/22