What group of people were the first to formalize addition? Answer the following sums. Once you have completed each question, put your answers in order from smallest to largest it will join together to give you the answer you seek.

C: 6 + (-10) E: -12 + 19 E: -3 + (-4) E: 36 + (-18) H: (-7) + (-8)

H: -8 + 6 I: 9 + (-9) N: (-6) + 10 S: 16 + (-1) T: (-9) + (-9)

i can't solve unless i know what the line is

step-by-step explanation:

welcome to/p>

answer: 0.64

step-by-step explanation:

the battle of gettysburg is considered the "high water mark" of the confederacy because it marked the greatest advance of the confederate forces against the union.

proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.

let's check the answers to see if they are proportional.

question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.

question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.

question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other

question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.