Answer:
there is no s in the question please explain
Step-by-step explanation:
S = 6.5
12.5 + 8 = 20.5,
27 - 20.5 = 6.5
therefore s = 6.5
Checking work
12.5 + 8 + s =
12.5 + 8 + 6.5 = 27
