4x+7 = x+10 parallel sides have to be equal in a parallelogram
subtract x
3x +7 = 10
subtract 7 from each side
3x =3
divide by 3
x =1
129 degrees is the correct answer for the missing angle number 1 :)
Answer:
It's -32x^2
Step-by-step explanation:
The correct answer is in fact $30.67
