Answer:
EBC and CBF are supplementary.
EBD=66
Step-by-step explanation:
Since vertical angles are congruent, ABE=CBF
ABE=40-x
40-x + 6x-30=90
5x+10=90
5x=80
x=16
16(6)-30=66
35°C
13+22=35
D
2^3 equals 8, and 3^4 equals 81. 81 times 8 equals 648.
1. 2x-4x
2x
2. 3+5
8
3. 2x*8
