Answer:
A
Step-by-step explanation:
The general rule for the quadratic function is

Use the data from the table:

We get the system of three equations:

From the first equation
then

Add these two equations:

So,

The quadratic function is

How sad. You were going along so nicely there, with a fascinating problem
that would be fun to work on, and then you suddenly fell off over the edge.
"Which of these ..." always means "Here's a list of choices. Pick out the
correct answer from the list." So we know that there was a list of choices
right there, where you copied the question from. But when you finished
copying the question and reached the list of choices, you stopped there,
never copied the list, and went away to do something else instead.
Without that list, there's no way for us to answer the question "Which of these...".
Answer:
15 10 5
60+45=15
30-20=10
10-5=5
170
60+30+10+45+20+5=170
340
170x2=340
Step-by-step explanation:
Bank A
f-final cost
c-number of cheques

Bank B

At the thirteenth cheque, bank a is cheaper than bank b
a-red
b-blue
It is 32. It matches with side LM and so it's equal to 32