Apert network consists of activities linked by arrows. suppose two of the activities on the network are labeled "a" and "b." an arrow from "a" to "b" indicates that

Task A must be completed before you can start with task B.

Explanation:

A Program Evaluation Review Technique (PERT) network is a project management technique used to schedule, organize and coordinate tasks. It was first developed by the navy during the 1950s as a way to manage their submarine missile program.

answer; ///pegged exchange rate with the united states;