Where what assignment are you talking about
What you can do is multiply 400*20= 8,000. From here, we know that 399*20 is just one less group of 20 than 400. Therefore, we can subtract (1*20) from 8,000 to get the final answer.
8000-20=7980
Hope this helps!
Yes it is a arithmetic sequence this is because you are adding 8 to each number to get the result of the next number
Statement 1 is true.
-Hope this helps, have a nice day! :)
