Answer:
= 15/4 as fraction
Step-by-step explanation:
S56=56/2[2(-8)+(56-1)7]
S56=10332
I dont think so I would look at it as how did they get the -2
8 cm
-24 2/7
-180 4/7 -166 2/7
-180 -166 = -24
4/7-2/7 = 2/7