Answer
Exact: $1375.45$, Estimate: $1300$ so the answer is reasonable.
Work Step by Step
Exact: $734.89+640.56 = 1375.45$
Estimate: $700+600=1300$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.