4. A sari -sari store store saved P20,500 last year. If this represents 10% of its annual income, how much was its income last year?
5. A senior high school has 5,000 students enrolled for academic year 2020-2021. Of these, 1,200 are taking STEM course, 1,500 are ABM, 700 are TVL, and the remaining are GAS.
