Senior Citizens have a 20% discount in food establishments. If Norma, a72-year- old mother, has a receipt that amounts to Php 645.80, How much is the original bill? Explain your answer. PERFORMANCE SCORE Problem was completely 5 solved and explained. Problem was halfway solved but calculation occurred and explained. Solving progress was evident. Attempt was made but 2 failed to continue. No attempt. 01-3 Mercy earns a monthly salary of Php 0,200.00. She spends 1' for food, '3 01" clothing. 2 g for education, and 1.-'10 for recreation. She saves the rest. 1. Compute the amount she spends for each item and her total expenses. 2. How much does she save each month? 3. What fractional part of her salary is her savings? 4-6 A Senior High School has 5,000 students enrolled for academic year 2019-2020. 0f these, 1,200 are maioring STEM, 1,500 are ABM, 200 are HUMSS, and the remaining are GAS. 4. What percent of the enrollees take HUMSS? 5. What percent has chosen as a major which is not HUMSS or ABM? 6. What percent are enrolled to GAS? 2. Every passenger in any domestic ight of an airline is allowed 20 kilograms of luggage for free. However, the excess baggage costs Php 200 per kilogram. lfa person has 26.3 kilograms of luggage, how much extra will this person pay? 3. In a certain baraugay, the 2010 population was 4,230. In 2014, the population increased to 0,255. Find the percent ofirtcrease in the population. 0. A woman deposits Php 23,200 into her account. How much would the annual interest be if its interest rate is E- ' as i" 2 10. Julia made rihhons for her school's Foundation Day presentation.Her roll of ribbon is 35 meters long. For each individual ribbon, sheneeds 0.235 meter. How many ribbons could she make from her roll