Which of the following sets of ordered pairs is not a function? {(1, 4), (2, 5), (3, 6), (4, 7)}
{(0, 2), (1, 2), (2, 2), (3, 2)}
{(-1, 5), (2, 4), (2, 6), (-3, 7)}
{(-4, 3), (-1, 1), (-2, 5), (3, 7)}

Ashopper bought a watermelon a pack of napkins and some paper plates in his state there was no tax on food the tax rate on non-food items is 5% the total for the three items he bought was 825 before tags and he paid $0.19 in taxes how much did the watermelon cost

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.