Mi codigo para el desafio final de la seccion 2

Buenas, dejo mi codigo para que puedan tomarlo como referencia o hacerme correciones ;)

// Activity #1
// Variables
const userDay = prompt(`What day of the week is?`).toLowerCase();

// Logic
if (userDay === `sabado` || userDay === `domingo`) {
  alert(`Good weekend!`);
} else {
  alert(`Good week!`);
}

// Activity #2
// Variables
const userNum = +prompt(`Type a number: `);

// Logic
if (userNum >= 0) {
  alert(`It's a positive number ( + )`);
} else {
  alert(`It's a negative number ( - )`);
}

// Activity #3
// Variables
const score = 50;

// Logic
if (score >= 100) {
  alert(`Congratulations!, You've won `);
} else {
  alert(`Try again to win `);
}

// Activity #4
// Variables
const balance = 120.5;

// Logic
alert(`Your balance is: $${balance}`);

// Activity #5
// Variables
const userName = prompt(`Please, type your name: `);

// Logic
alert(`Welcome! ${userName} to this webpage!`);