What is the square root of 12544 by fraction method

Achild starts adding up all positive integers beginning with 1. at some point, her total is 444. her dad realises that such a total is possible if the child has accidentally counted one of the numbers twice. what number did the child count twice?

When you reduce 7y + 2y 2 - 7 by 3 - 4y what do you get

If the 7th term of an ap is 15 and 13th term is 27 then find the nth term ​