The graph has a x - axis of amount of scarves in intervals of 1 and a y - axis of hours in intervals of 20
Using this information we can see that in the ordered pair, 1 represents x and 16 represents y, which means that the scarves ar 1 and the hours are 16 in the ordered pair
C makes the most logical sense because there is nothing about centimeters in the graph and the scarves are not in the y, but rather in the x
23 is less than 25 which means it's closer to 20, so you would round it down to 20. 1.75 is over 0.50, 1/2, so you would round it up to 2. If you multiply 2 and 20 you would get 40.
Number two gets the same explanation just with different numbers.