first part:
The simple interest formula is:
I = P*r*t
second part:
Based on the given information, you have:
P = $6,000 principal
r = 4.4% = 0.044 annual interest rate
t = 10/12 = 0.84 time in years, 10/12 years is the same as 10 months
I = ($6,000)(0.044)(0.84) = $221.76
third part:
The matuirity is given by:
M = P + I
M = $6,000 + $221.76
M = $6,221.76