Lets make a known and an unknown chart:
KNOWN: Fifteen $5 bills.
UNKNOWN: How much is that?
So to find the answer to this, we are going to do 5+5+5+5+5+5+5+5+5+5+5+5+5+5+5=??
The answer is $75.
~Hope I helped!~
Maybe c or A not completely sure try looking for the one you think it is and try reading it again
Answer:
14
Step-by-step explanation:

now substitute x for -1

now solve


there is your answer! hope this helps! :)