15
63 x 5 = 315
315/20 = 15.75
hence, 15 $20 bills
i-okay,whats yoour problem? maybe i can help :D
Formula for compound interest is
Interest = Amount - Principal
Interest =
- P
Where r = rate in percent
t = time in years
For Jaina,
P = $300
r= 7%
t = 3 yrs
So, Interest =
- 300
For Tomas
P = $400
r= 4%
t = 3 yrs
So, Interest =
- 400
So pair of equations for Jaina and Tomas are
Interest =
- 300
Interest =
- 400
Answer:
I gc bj jiu I'll vuhv jo b DDT UK k
It is the answer of .6 i think