To determine how much more Grant has to pay on his credit card bill, we need to subtract the amount he has already paid from the total bill amount.
1. The total amount of the credit card bill is [tex]$2684.72.
2. Grant has already paid $[/tex]1865.24 of this amount.
To find the remaining amount, we perform the subtraction:
[tex]\[ 2684.72 - 1865.24 \][/tex]
When we subtract these two numbers:
[tex]\[ 2684.72 - 1865.24 = 819.4799999999998 \][/tex]
Given this result, when we look at the choices provided:
- [tex]$\$[/tex] 817.48[tex]$
- $[/tex]\[tex]$ 819.48$[/tex]
- [tex]$\$[/tex] 821.41[tex]$
- $[/tex]\[tex]$ 822.48$[/tex]
The closest match to our result [tex]$819.4799999999998$[/tex] is [tex]$\$[/tex] 819.48[tex]$.
Therefore, the amount that Grant still needs to pay is:
\[\boxed{\$[/tex] 819.48}\]
