Name: Gr. & Sec: Score: 1'30 crNITIE Give what is being asked. Write your answers clearly on the space provided. A C T 1 VI TY 6: Solving Exponential Equations and Inequalities 1 1. 169" = 13" 6. 4x\" = 64 2' 7x = l 7' 53x+8 = 252x 49 3. 3x\" = E 8. 45x'13 = i 5 9 x 4. 43"+2 1002"5 +1 5. Ex 2% 10. 49" = 343296-3 . A barangay has 1500 individuals and its population doubles every 20 years. (2 points each) A. Give an exponential model for the barangay's population. B. What is the barangay's population in 50 years? (Round off to nearest whole number) . A certain bank offers 2% annual interest rate, compounded annually for a time deposit account. (2 points each) A. Give an exponential model for an amount of P500 000 invested under this scheme. B. How much money will there be in the account after 20 years? (Express answers in two decimal places) The half-life of a radioactive substance is 125 years. If the initial amount of the substance is 300 grams, (2 points each) A. Give an exponential model for the amount remaining after t years. B. What amount of substance remains after 1000 years? (Answer must be up to thousandths place) When you use credit card to purchase item, you are actually making a loan. A constant percent interest is added to the balance. Cecil buys a flat screen TV worth 1320 000 with her credit card. The balance then grows 3% each month. (2 points each) A. Give an exponential model for the amount loaned under this case. B. How much will she owe if she makes no payments in 6 months? (Express answers in two decimal places) . A bacterium grows at a rate of25% each day. There are 200 bacteria today. (2 points each) A. How many will there be one week from now? B. How many will there be one month from now