What are the components of a formal tone? Check all that apply.
standard spelling
familiar slang terms
lively dialogue
a clear and direct purpose
appropriate transitions

The things that apply are standard spellings, a clear and direct purpose and appropriate transitions.

Explanation:

no it who u choose to be. let no one tel u what or who to be;

the pronoun reference replaces a noun, but you have to make sure there's no room for confusion.

in the first sentence "her" could be referring to shely or to the sister. the answer there is "shelly called her sister and told her about the new baby."

in the second sentence "it" could be referring to the roof or the floor. the answer there is "since the roof leaks on the family room floor, we need to repair the roof."