Answer:
math way
Step-by-step explanation:
The sum is 41.22 because first you turn all of the fractions into decimals and then it’s easier to add them all together all at once.
S is slope
S= rise/run
S1=3/12=1/4
S2=2/16=1/8
S3=5/15=1/3
S4=4/20=1/5
Deepest slope S3 aka C
UGH I think I did this before but I totally forgot how to do it. Give me a minute to do some research and remember because I'm about 79% sure I know how to do this!