Answer:
$22500
Step-by-step explanation:
principal=$12000
time=15 years
rate=
=12*2+1/2
=25/2
=12.5
Interest=PTR/100
=$12000*15*12.5/100
=$2250000/100
=$22500
the answer is 27.54
w=40
120*1/3=40
Therefore, w=40