<span>agreement to modify an existing contract would be the answer</span>
Basically, an interest rate is an amount that is added on top of the principal amount most especially in loans. This is expressed in a form of percentage, depending on the amount and interest rate being agreed upon. The answer for this would be the second option. Hope this helps.
In economics, the invisible hand<span> is a </span>metaphor used<span> by </span>Adam Smith<span> to describe ... Smith </span>may<span> have come up with the two meanings of the phrase from Richard Cantillon ... In this </span>work<span>, however, the idea of the </span>market<span> is not discussed, and the word ... In alternative models, </span>forces<span> which were nascent during Smith's life, such as ... and ....</span>
No Decision have been made