Answer:
Step-by-step explanation:
The questions are asking you whether the calculation of each needs to be exact or an estimate. An estimate is used when the final value needs to be close to what is needed but is ok if it surpasses the needed value. Exact values are used when the final value needs to be exact and cannot be over or under the needed value or it will cause errors. Therefore, the answers are the following...
1. exact
2. estimate
3. exact
4. estimate
5. exact
6. exact
