Question

Write explicit (for the nth term) formulas, 5, 20, 80, 320

Answer 1

t×4

Explanation:

5×4=20

20×4=80

80×4=320

To get from 5 to 20 you might try to add but you will see that it won't work to get the rest of the pattern. So to get to 20 from 5 you multiply by 4. If you continue to follow the pattern you will see that this way works so the answer is t×4.