6 + 4 + 8 + 2 + 5 = 25
25/5
mean = 5
Answer: 
Step-by-step explanation:
Sine uses the ratio,
so we can plug in the information we know. since there is no current value for the opposite side of angle A, we can just use a variable to replace it.

You can't reduce this any further because there is an unknown variable.
I think its b iam not to sure i have the same question myself
An algebraic EXPRESSION will not have an equal sign so it will not be letter a or b.
Since it's algebraic it will have numbers, VARIABLES, and symbols. Letter C
Is there supposed to be a picture? I don’t see one.