What is the axis of symmetry for this function?
y=x2 - 2x - 3
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Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6