Does anybody know what this is and how i can use it

Modern businesses use different technologies to accomplish work tasks

Martha is designing a single-player game. her manager suggests that she plan the design to incorporate future modifications. which principle of game design relates to planning for future modifications?

The following if statement contains a logic error, not a syntax error. rewrite it so that it is correct. assume the variable age already exists and holds a valid number. if (age == 18 & & age == 19) {