Education for All is a non-government organization which aims to help marginalized families with the school expenses of their children. As part of their fund-raising program, they sell soaps and water tumblers online. They make Php 100.00 profit on every soap and Php 250.00 on every water tumbler. Their weekly goal is to sell at least 7 items (soaps and water tumblers) and earn at least Php 1500. Write and solve a system of linear inequalities that shows all possible combinations of the number of soaps and water tumblers they could sell to reach their goal.