Answer:
The sum is equal to 
Step-by-step explanation:
we know that
The formula to calculate the sum is equal to

In this problem
-----> number of terms
a1 is the first term

an is the last term

substitute

Answer:
x=-20/9
Step-by-step explanation:
4(4x+1)=3x-4(6-x) +8
16x+4=3x-24+4x+8
16x-3x-4x=8-4-24
9x=-20
x=-20/9
Answer:
I believe your answer is 452.39
Step-by-step explanation:
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Step-by-step explanation:
step by step explanation