Please help

7. [l1 Points] DETAILS WANEFMAC7 7.3.022. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Professor Oger must choose between an extra writing assignment and an extra reading assignment for the upcoming spring break. For the writing assignment, there are two essay topics to choose from and three different mandatory lengths (3-1} pages, 35 pages, or 40 pages). The reading topic would consist of one scholarly biography combined with one volume of essays. There are six biographies and seven volumes of essays to choose from. How many choices does she have? HINT [See Example 2.] S choices Med Help? 8. [l1 Points] DETAILS WANEFMAC7 7.3.024. MY NOTES ASK YOUR TEACHER Radar Detectors Radar detectors are either powered by their own battery or plug into the cigarette lighter socket. All radar detectors come in three models: no-frills. standard, and fancy. In addition. detectors powered by their own batteries detect either radar or laser, or both, whereas the plug-in types come in models that detect either radar or laser, but not both. How many different radar detectors can you buy? [:] choices Ne... Help? 9. [l1 Points] DETAILS WANEFMAC7 7.3.025. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Multiple-Choice Tests Professor Easy's nal examination has 9 true-false questions followed by 3 multiple-choice questions. In each of the multiple'choice questions, you must select the correct answer from a list of four. How many answer sheets are possible? C] choices Need Help? 10. [i 1 Points] DETAILS WAN EFMAC? 7.3.027. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A test requires that you answer either part A or part B. Part A consists of 6 true-false questions, and part B consists of 6 multiple- choice questions with one correct answer out of six. How many different completed answer sheets are possible? :J answer sheets