How does an author use artifacts in literature?

Consider the simple 3-station assembly line illustrated below, where the 2 machines at station 1 are parallel, i. e., the product only needs to go through one of the 2 machines before proceeding to station 2.what is the throughput time of this process?

Per the municipal solid waste report, what are the most common sources of waste (trash

Me ajude por favor , coloquei uma senha e não consigo tira-la no chorme