Answer:
-4
Step-by-step explanation:
20 - 24 equals -4 (24 is negative because the temperature drops)
Answer: 4=-2x -1 and y=-1 2x
we know that
The formula to find the sum is equal to
where
a1 is the first term
an is the last term
n is the number of terms
In this problem we have
substitute the values in the formula
-5