How many distinct triangles can you draw which have one angle measuring 35°,one angle measuring 70°,and one angle measuring 75°?

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

Find the image of a(4, -2) after it is reflected over the line y= 2, then reflected over the line x = 2. (-8,6) o (0.-2) o (0,6) (-8, -2)

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?