typo

9-regular-expressions/07-regexp-quantifiers/2-find-html-colors-6hex/solution.md

@@ -1,6 +1,6 @@
-We need to look for `#` followed by 6 hexadimal characters.
+We need to look for `#` followed by 6 hexadecimal characters.
 
-A hexadimal character can be described as `pattern:[0-9a-fA-F]`. Or if we use the `i` flag, then just  `pattern:[0-9a-f]`.
+A hexadecimal character can be described as `pattern:[0-9a-fA-F]`. Or if we use the `i` flag, then just  `pattern:[0-9a-f]`.
 
 Then we can look for 6 of them using the quantifier `pattern:{6}`.
 

9-regular-expressions/07-regexp-quantifiers/2-find-html-colors-6hex/task.md

@@ -1,6 +1,6 @@
 # Regexp for HTML colors
 
-Create a regexp to search HTML-colors written as `#ABCDEF`: first `#` and then 6 hexadimal characters.
+Create a regexp to search HTML-colors written as `#ABCDEF`: first `#` and then 6 hexadecimal characters.
 
 An example of use:
 

9-regular-expressions/21-regexp-unicode-properties/article.md

@@ -34,7 +34,7 @@ For the full Unicode Character Database in text format (along with all propertie
 
 There are also other derived categories, like:
 - `Alphabetic` (`Alpha`), includes Letters `L`, plus letter numbers `Nl` (e.g. roman numbers Ⅻ), plus some other symbols `Other_Alphabetic` (`OAltpa`).
-- `Hex_Digit` includes hexadimal digits: `0-9`, `a-f`.
+- `Hex_Digit` includes hexadecimal digits: `0-9`, `a-f`.
 - ...Unicode is a big beast, it includes a lot of properties.
 
 For instance, let's look for a 6-digit hex number: