Step-by-step equation for a B & C Must show all work .work on a piece of paper send a piece of paper thank you. Whoever gets it right gets extra points.

Hey there!
a.) 1 inch
beginning = 2; end = 3; difference of 1
b.) December, because the length was, let's say, 2, then it went down 1 (so we're at 1), then went up 3 (4), then went down
c.) in December
Hope it helps, have a great day!
Step-by-step explanation:
a.total change in my hair =2-1+3-4+3=3inches
b.my hair is longer on December because the length of my hair is 3inches but 2inches in January.
c.my hair is longest as on December because the length of my hair is longer than on other month.