Filter obj[keys]

function myLanguages(results) {
	let final = [];
	let arr = Object.entries(results);
	let biggerItem = arr.filter(([key, value]) => value >= 60);
	let sort = biggerItem.sort((a, b) => a[1] - b[1]).reverse();
	sort.map(item => final.push(item[0]))

	return final
}

console.log(myLanguages({ "Java": 10, "Ruby": 80, "Python": 65 }))

['Ruby', 'Python']