Which set of ordered pairs does not represent a function? A{(-4,3), (8,3), (-2, 3), (7,7)}
B{(-2,-5), (0, -2), (9,9), (2,1)}
C{(9,3), (5, 4), (3, 3), (-6,3)}
D{(6,1), (8,2), (-4,5), (6,3)}

A and C

Step-by-step explanation:

By  finding the areas of rectangles using the coordinates above, the following does not represent their functions

A) (-4,3), (8,3), (-2,3), (7,7) and C) (9,3), (5,4), (3,3), (-6,3)

the number 100 represents the number of trials in the experiment.

49/100 represents the experimental probability of the coin landing heads up.

step-by-step explanation:

add the numbers under frequency to find the total number:

5 + 8 +7 + 4 + 0 +1 = 25

the answer is 25.