Answer:
Explanation:
Step one:
For Ryan
Principal= $775
rate= 4.24%
time = 4 years
the simple interest formula
SI= PRT/100
SI=(775*4.24*4)/100
SI=13144/100
SI=$131.44
Step two:
For Brian
Principal= $775
rate= 4.24%
time = 1years
the simple interest formula
SI= PRT/100
SI=(775*4.24*1)/100
SI=3286/100
SI=$32.86