This is the answer
if u do 3rd, 4th .... derivatives the answer will be 0 again.
The answer is 93
If we sorted out the number of each hours, the sequence will look like this
57 _ 69 _ 81 _ x _ 105
(in which x is the fourth hour of work)
We can see from the sequence that each hours, the mailman add additional 12 letters.
(69 - 57 = 12)
(81 - 69 = 12) . . . . proof
So, the amount of letters on the fourth hour would be:
81 letters + 12 letters = 93 Letters
Answer:
79.6 dollars saved
Step-by-step explanation:
Mail
4 times 54.90 equals 219.6
4 times 6.50 equals 26
4 times 8.34 equals 33.36
219.6 + 26 + 33.36 = 278.96
Local store
332 times .08 equals 26.56
332 + 26.56 = 358.56
Difference
358.56 - 278.96 = 79.6
Answer: if you answers my question ill answer this
Step-by-step explanation:
pleade