Answer:
[tex]A=30-2x[/tex]
Step-by-step explanation:
Cost of one cup of coffee=$2
The original amount of money on the gift card= $30
Juan's expenses in buying coffee, after [tex]x[/tex] morning are [tex]\$2\times x[/tex].
The amount of money left, [tex]A[/tex], on the card [tex]=[/tex] (Original amount) [tex]-[/tex] (Total expenses)
[tex]A=30-2x[/tex]
Hence, the equation for, [tex]A[/tex], the amount of money remaining on the card is
[tex]A=30-2x.[/tex]
