Answer:
missing quotation marks around a string literal
We need more information for this one, please.
Answer:
Convergent Plate Boundary (subduction zone)
Explanation:
A convergent plate boundary is a location where two tectonic plates are moving toward each other, often causing one plate to slide below the other (in a process known as subduction). The collision of tectonic plates can result in earthquakes, volcanoes, the formation of mountains, and other geological events. An example is the one the formed Andes Mountain.
Cheers
A process or set of rules to be followed in calculations or other problem-solving operations, especially by a computer.
Answer:
previousAddition instance variable
Explanation:
In order to accomplish this you would need to add a previousAddition instance variable. In this variable you would need to save the amount that was added at the end of the process. Therefore, if a mistake were to occur you can simply call the previousAddition variable which would have that amount and subtract it from the total. This would quickly reverse the mistake, and can be easily called from the undo() method.
