3. The Dela Cruz borrowed P30 000 for home improvements. They repaid the loan and P6 000 in simple interest for four years later. What simple annual interest rate did they pay? 4. Mr. Berry had P 120 000 in a retirement account. The account paid 4.25% simple interest. How much money was in the account at the end of 10 years? 5. What is the exact and approximate time when a note started January 17 and the maturity date on November 23 of the same year? \"I. Test this inferential statistics problem. 6. How high is the relationship between vocabulary level and problem solving? Vocabulary Scores 15171919 20 21 23 22 22 Problem Solving scores 17 1821 1820 22 22 2321