const add = function(firstValue, secondValue) { firstValue = 8 secondValue = 10 result = firstValue + secondValue return result }; const subtract = function() { }; const sum = function() { }; const multiply = function() { }; const power = function() { }; const factorial = function() { }; // Do not edit below this line module.exports = { add, subtract, sum, multiply, power, factorial };