Answer:
6%
Step-by-step explanation:
I = Prt, so r = I / (Pt)
t = 9 months / 12 months = 0.75
r = $18 / ($400 * 0.75) = 0.06, or 6%
The scale factor is 4 and for the perimeter just use the distance formula
The answer is C.
If Sergio is 'S' years old, and you want to know how old he'll be in 7 years, add 7 years to his age.
So: s + 7
Hope this helps!
