15*1.6 + 15 * .8 =
24 +12=36
He needs 36 dollars
If he has 25 dollars, he is short 11 dollars
1.29
One assignment a day and a little bit on another
Answer:
P = 8000
t = 2
I = p × r × t
400 = 8000 × r/100 × 2
r = 400/160 per year
r = 40/16 = 2.5 %
