My grade is a 90.82% and if i get a 60% on my final what would my grade be then?

i think 50.82

Step-by-step explanation:

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true

what’s the question?