He can make 2 batches of cookies. I'm not sure about the leftover cups because you wrote sugar twice
The matchings are as follows:
1) 2=3 , 4 =5 (Given)
2) 1 =3 (vertical angles are equal)
3) 1 =2 (substitution)
4) VR=VR (Reflexive)
5) Triangle VSR congruent to Triangle VTR (ASA)
6) RS=RT CPCTE
The matchings are done above. The triangles are congruent as per ASA congruency as two angles and corresponding side is equal.
since 2 =3 and 1 = 3 we get 1=2
By CPCTE we have RS =RT
The sum of angles in a triangle is 180°
So:
(x+7) + (11x-9) +32 = 180
15x +30 = 180
15x = 180-30
15x = 150
x = 150/15
x = 10°
