Do the following problems

6) 7) 8) d) On average, the post ofce processes 45.6 letters every hour. How many letters can the ofce process during the 9 hours it is open? e) During Christmas, the post office opens 12 hours a day. Compared to usual days, how many more letters can the post office process? A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly? Children has to pick their favourite sport from basketball, football and hockey. 130 chose basketball and i chose hockey. What percentage chose football? In a fruit survey, children choose their favourite fruit out of apples, bananas and watermelon. 29% chose apples and i chose bananas. What percentage chose watermelon