Answer:
25 cookies
Explanation:
Since the number of cookies is proportional to the cost, we can create a proportion to determine the amount of cookies you can buy for Php 545.00:
10 cookies / Php 217.75 = x cookies / Php 545.00
(10 / 217.75 = x / 545.00) * 545.00
25.028 = x
25 = x
Thus, you can buy about 25 cookies for Php 545.00