4
4 - 3 = 1
1 - 3 = -2
-2 - 3 = -5
-5 - 3 = -8
It's the arithmetic sequence.
substitute
Answer:
the answer is 28 hoped that helped
$4.72
Step-by-step explanation:
16.79+28.49=45.28
50-45.28=4.72