help with answering please

MP Be Precise Find the percent error, Round to the nearest whole percent if necessary. (Example 3) 7 Each week, Mr. Jones goes to the grocery 8. Marcus estimates that 230 people will store. Mr. Jones estimates that he will spend attend the choir concert. There was an act $120 when he goes to the grocery store this total of 300 people who attended the choi week. He actually spends $94. concert. Find each number. Round to the nearest tenth if necessary. 1. 50 is 20% of what number? 2. What percent of 20 is 4? 3. What number is 70% of 250? 4. 10 is 5% of what number? 5. What number is 45% of 180? 6. 40% of what number is 82? 7. What percent of 90 is 36? 8. 60 is 25% of what number? 9. What number is 32% of 1,000? 10. What percent of 125 is 5? Find each percent of change. Round to the nearest whole percent if necessary. State whether the percent of change is an increase or decrease. 1, original: 35 2. original: 8 3. original: 45 new: 70 new: 12 new: 30 4. original; $350 5. original: $75 new: $400 6. original: 250 new: $60 new: 100 7. original: $30 8. original: 35 new: $110 new: 28 9. original: $12.50 new: $15 10. original: 80 new: 52