Each side is 4 sq centimeters long.
-7 because 56 divided by 8 is 7 but since we are using division with negatives and positives a positive + a negative = a negative
so your answer is -7
hope this helps hope i m brainliest i need 3 more
To find the answer, you need to round to the nearest tens. Round 142 to 140 and 1 68 to 160. You know that 1+1=2, and 6+4=10, so 200+100=300 pages read.
I will assume that this question is about scientific notation (also assuming that the first number is 3.4*10^2), where you can arrange the numbers by the exponent of the 10, so from least to greatest:

,

, 435, and