Plz help! The sum of the first n positive integers is 1/2 (n^2+ n ) . Check the expression for the first 5 positive integers. Then use the expression to find the sum of the first 14 positive integers.

How many units away is 1 from -6 on a number line?

Does the construction demonstrate how to copy an angle correctly using technology a) yes the distance between points a and f was used to create circle h b) yes the distance between points f and g was used to create circle h c) no the distance between points a and f was used to create circle h d) no the distance between points f and g was used to create circle h

The sum of five and a number n is at least 12