Answer:
1.15s + $2.50
Explanation:
Given that:
Markup percentage of strawberries in winter = 15%
Additional increase due to drought = $2.50
Cost of a carton of strawberry = s
Cost of strawberry after Markup ; M(s)
M(s) = (original cost * ( 100% + markup %)) + additional cost due to drought
M(s) = (s * (100% + 15%)) + $2.50
M(s) = 115% * s + $2.50
M(s) = 1.15s + $2.50