Which set of ordered pairs does NOT represent a function? ((0, 0), (1, 1), (2, 2), (3, 3)}
{(0, 0), (0, 1), (1, 2), (1, 3)}
{(1, 0), (2, 0), (3, 0), (4, 0)}
{(0, 1), (1, 2), (2, 3), (3, 4)}

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earned $75 in interest. how much interest will she earn during the following year? show your work and explain your reasoning in the space provided below.