Im desperate! ! should an estimate or the exact answer be calculated? then do the appropriate calculation. the conservation club participated in a beach cleanup program over a 5 week period. their goal was to collect at least 60 pounds of trash. they collected pounds in each of the first two weeks and pounds for each of the last three weeks. did the club reach its goal? a. an estimate can be used to know if the goal was reached. 12 • 2 + 13 • 3 = 63 at least 63 lb were collected. b. the exact answer is needed to know if the goal was reached. pounds were collected.