I think the answer is (D. $137.44) but not confident. I was taking 4.65×1.37=6.3705
6.3705×19days=121.0395

Answer:
Choice C) $1841.38 is correct.
Step-by-step explanation:
Given equation is [tex]y=4.65*1.37^{x}[/tex]
where x is the number of days.
Now we need to find the value of y when x=19 days.
So plug x=19 into above equation and solve for y.
[tex]y=4.65*1.37^{x}[/tex]
[tex]y=4.65*1.37^{19}[/tex]
[tex]y=4.65*395.99597892[/tex]
[tex]y=1841.38130198[/tex]
Hence choice C) $1841.38 is correct.