A ratio that compares the inaccuracy of an estimate (amount of error) to the actual amount is called ​ ​ (a)  

The ratios of related terms are not equal

The manager of a grocery store buys boxes of cereal from a distributor for $2.80 and sells them to customers for $4.30. The amount $2.80 is the

The Chan family went out to lunch and left their server $6.97 for a $34.86 bill. The $6.97 is an example of a(n)

The amount paid or earned for the use of the principle