Differentiate between unitary system and the federal system in a sentence

a unitary system the only level of government besides the central is the local or municipal government. ... Within a federal system the state or provincial governments share sovereignty with the central government and have final jurisdiction over a broad range of policy areas.

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.

you would times this by how many days there are in a year 365*400=$146000