Answer:
The answer is -12
Step-by-step explanation:
You can use the distributive property
-(a - b + c) = -a + b - c
So, the answer to this is -8 + 1 - 5.
x^2-2x-3
Explanation: Use FOIL
Formula: Distance = rate * time
570 = (R+(R-18))*3
570 = (2R - 18)*3
190 = 2R-16
208 = 2R
R = 104
Eastbound Train: 86mph
Westbound Train: 104mph
Answer: exponential decay
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