The base plan costs $25 for $100$ minutes. The total budget is $33.

Budget remaining for extra minutes:

$\$33 - \$25 = \$8$

Each extra minute costs \0.10$, so the number of extra minutes is:

$\frac{8}{0.10} = 80 \text{ minutes}$

Total minutes:

$100 + 80 = 180 \text{ minutes}$