The first four terms of a sequence are shown below: 9, 5, 1, −3 Which of the following functions best defines this sequence? 1. f(n) = 5(n-1) + 9; for n ≥ 1
2. f(n) = − 5(n-1) + 9; for n ≥ 1
3. f(n) = − 4(n-1) + 9; for n ≥ 1
4. f(n) = 4(n-1) + 9; for n ≥ 1

Joanie watched 1 out of three of a movie in the morning

Randy and trey take turns cleaning offices on the weekends. it takes randy at most 4 hours to clean the offices. it takes trey at most 6 hours to clean the offices. what is the greatest amount of time it would take them to clean the offices together? 2.4 hours 2.5 hours

Atennis racket at sport city costs $180 and is discounted 15%. the same model racket costs $200 at tennis world and is on sale for 20% off. which store is offering the better deal? explain: