DBJ + ABJ = 90
DBJ = ABC
DBC + ABC = 90
JBC + DBC + ABJ = 90
And last but not least:
ABJ = 28
PQ=5i-4j 3QR+PQ-PQ=11i-4j-(5i-4j)=6i
3QR=6i QR=2i
R=Q+2i R=(4, 1)
Answer:
D
Step-by-step explanation:
Well you need an equation because how many friends were at the party? x*12x10=w thats your equation or however you want to put it. the letters are your variables
