Answer:
decay
Step-by-step explanation:
once you rearrange the formula and graph it. you would find that the formula goes down
it is decay
3/5 is greater
3/5 is 60% which is greater than 23%
They will deliver on the same day again 21 days later
Multiples of 3 and 7
3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30
7: 7, 14, 21, 28, 35, 42, 49