Im havig trouble with JS control flow 4/9

my code looks like this so far:

let raceNumber = Math.floor(Math.random() * 1000);

let registeredEarly = false;

let age = 15;

this is what i am supposed to do:

Create a control flow statement that checks whether the runner is an adult AND registered early.

Add 1000 to their raceNumber if this is true.

the hint says this:

A runner is an adult if their age is over 18.

You’ll need to use an if statement, the && logical operator, and the mathematical assignment operator +=.

I don’t know how to type this. Can anyone help?