Answer:
279+1.80s
Step-by-step explanation:
If we add the material cost to the labor cost, this would give us the manufacturing cost.
M(s)+L(s)=(225+0.65s)+(54+1.15s)
We will not combine like terms.
(M+L)s=225+54+0.65s+1.15s
Simplify.
(M+L)s=279+1.80s