Test in the AM, stuck on 2 geometry problems!

Hi and Help please!!

I have a test tomorrow first period in geometry and I am stumped on these two problems on the review sheet.

a) Find QD if QE=11+__20__ and QD=__400 __-10 _______________

a-2 a+3 Q E D

E is the midpoint

b) Angle 3 and 4 are supplementary. Find the measure of angle 3

m>3=78+__360 __and m>4= __360 __+ 32

y y-3

Thank you to anyone that can help me. I am so tired, I can't see straight!

Panic city, Here are the problems

QE=11+ 20/(a-2) QD=400/(a+3) -10

E is midpoint of line QED

2nd headache question:m>3=78+360/y andm>4=360/y-3 +32

Angle 3 and angle 4 are supplementary

Sorry I typed wrong, I am beat. This test is a make it or break it for me in this course. Any help would be so appreciated.