add 4 each time
the nth term is a_n or f(n)
the next term after that is a_{n+1} or f(n+1)
so each term is 4 more than previous
basically
a_{n+1}=4+a_n or
f(n+1)=4+f(n)
same thing
The answer is -18. Hope this helps.
Your choices of answers are not clear, is the letter x a variable or a multiplication?
If it is possible, take a picture of your question.
73/50
146/100
146%
The answer would be 146%
Answer: 21
Step-by-step explanation: