Answer:
k = -1
Step-by-step explanation:
1 - 2k = -3k
-2k +3k = -1
-1
1-2k=-3k
1-2k+2k=-3k+2k
1=-1k
1/-1=-1k/-1
-1=k
His balance is $3778.28
#3. d = -10.25
#3. d = -6.5 + -3.75