Report quantities with accuracy appropriate to measurement limitations.
Report a calculated measurement using units and precision that fit the given measurements
Problem
Calculate the cost of \(3.5~\text{pounds}\) of apples at \(2.40~\text{dollars}~\text{per}~\text{pound}\). Show the unit cancellation, raw product, rounding policy, and final report.
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What this problem is really about
Set up the calculation so the quantity unit cancels against the denominator of the unit price, leaving the unit required for total cost. Compute with full precision, then apply the stated money policy only at the end; a trailing zero may be essential because it communicates cent-level precision.
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