The answer would be 20 or 9
Answer:
I believe it is C
Step-by-step explanation:
because in order to find out how much he has left to read you have to find out how much he has read.
#9 the sum of two angles is 90 degrees, creating a right angle.
#10 the sum of the two angles is 180 because the form a supplementary angle
Answer:
triangle EFD
Step-by-step explanation: