Write a function to evaluate the string containing the prefix expression. Use an algorithm that evaluates from left to right, rather than right to left. Easiest way to do this (although somewhat inefficient) is to have a stack for the operators and single variables for the operands. One of the operand variables will hold the result of the operation (and subsequently is the first operand for each operator) while the other holds the second operand to be used in the operation.

yes! has an email you can use to contact them.

explanation:

here’s the link to their contact page:

well you could find somebody who doesn't want theirs and ask for it or possibly trick a dealer into giving it to you for free.

answer is:

a). backstage view

explanation:

backstage view is the area where files and data about them is managed— creating, saving, printing, sending to others, inspecting for hidden metadata or personal information, and setting options. so in this way we can add many things to our document swiftly.

i hope you get the idea.