const originalDollars = 30;
  const myDollars = originalDollars - 15;
  const fiveDollarsLess = myDollars <= (originalDollars - 5);
  const fifteenDollarsLess = myDollars <= (originalDollars - 15);
  console.log(fifteenDollarsLess && fiveDollarsLess);
  // true