fix typos as identified in #9227

docs/csharp/language-reference/keywords/from-clause.md

@@ -27,9 +27,9 @@ In the following example, `numbers` is the data source and `num` is the range va
 
 The compiler infers the type of the range variable when the data source implements <xref:System.Collections.Generic.IEnumerable%601>. For example, if the source has a type of `IEnumerable<Customer>`, then the range variable is inferred to be `Customer`. The only time that you must specify the type explicitly is when the source is a non-generic `IEnumerable` type such as <xref:System.Collections.ArrayList>. For more information, see [How to: Query an ArrayList with LINQ](../../programming-guide/concepts/linq/how-to-query-an-arraylist-with-linq.md).
 
-In the previous example `num` is inferred to be of type `int`. Because the range variable is strongly typed, you can call methods on it or use it in other operations. For example, instead of writing `select num`, you could write `select num.ToString()` to cause the query expression to return a sequence of strings instead of integers. Or you could write `select n + 10` to cause the expression to return the sequence 14, 11, 13, 12, 10. For more information, see [select clause](select-clause.md).
+In the previous example `num` is inferred to be of type `int`. Because the range variable is strongly typed, you can call methods on it or use it in other operations. For example, instead of writing `select num`, you could write `select num.ToString()` to cause the query expression to return a sequence of strings instead of integers. Or you could write `select num + 10` to cause the expression to return the sequence 14, 11, 13, 12, 10. For more information, see [select clause](select-clause.md).
 
-The range variable is like an iteration variable in a [foreach](foreach-in.md) statement except for one very important difference: a range variable never actually stores data from the source. It just a syntactic convenience that enables the query to describe what will occur when the query is executed. For more information, see [Introduction to LINQ Queries (C#)](../../programming-guide/concepts/linq/introduction-to-linq-queries.md).
+The range variable is like an iteration variable in a [foreach](foreach-in.md) statement except for one very important difference: a range variable never actually stores data from the source. It's just a syntactic convenience that enables the query to describe what will occur when the query is executed. For more information, see [Introduction to LINQ Queries (C#)](../../programming-guide/concepts/linq/introduction-to-linq-queries.md).
 
 ## Compound from clauses