What is Internet Service Provider ? ​

Nathan wants to create multiple worksheet containing common formatting styles for his team members. which file extension him to save these worksheets? nathan to create multiple worksheets with common styles. he needs to save them with the extension.

Three out of five seniors remain undecided about a college major at the end of their senior year.

Whats three fourths of 15(this is supposed to be in math but i clicked too fast)