Answer:
Step-by-step explanation:
make common denominators
2/4n - 1/4n + 2/6a + 3/6a
add common equations
1/4n + 5/6a
Answer:
the answer is 3 because 7-4= 3
U can buy 5 fish hope it’s right
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Answer:
C. 
Step-by-step explanation:
c
Change in altitude:
42,000 - 18,000 = 24,000 feet
Rate of change = 24,000 feet / 12 minutes = 2,000 feet per minute
Because the plane was going down, the rate of change would be negative.
The rate would be -2,000 feet per minute.
