# How to wait on two tasks?

Suppose there are two async function GetX and GetY, then the code to get them to run in parallel and wait is.


```
var tx = GetX();
 var ty = GetY();
 var results = await Task.WhenAll(tx,ty);
 var z = results[0] + results[1];
``` 

The type for the function is
```
async Task GetX();
```