In Python, numbers without a decimal part are called Integers and fractions are Floats. Contrast this to JavaScript where all numbers are just a Number type.
You're already familiar with the number type. Numbers aren't surrounded by quotes when created, but they can contain decimal parts and negative signs.
let x = 2; // this is a number
x = 5.69; // this is also a number
x = -5.42; // yup, still a number
You can do arithmetic as you'd expect:
let sum = 2 + 3 + 7; // 12
let difference = 5.3 - 2.1; // 3.2
let product = 2 * 3; // 6
let quotient = 6 / 2; // 3
Textio tracks the number of messages sent for different types of notifications. Between the comments, create a:
totalMessagesSent variable that contains the total number of messages sent.averageMessagesSent variable that contains the average number of messages sent across all types.