You can declare multiple variables on the same line:
let miles = 80276, org = "Tesla";
The above is the same as:
let miles = 80276;
let org = "Tesla";
At the top of the script, declare a const called averageOpenRate and a const called displayMessage on the same line.
Initialize them to values (number and string):
0.23is the average open rate of your messagesbefore they're logged.