Which of these relations is a function? (2, 1)
(10, 13)
(10,-1)
(3, -13)
(9, 9)
(-15, 9)
(5, -16)
(5, -17)
(10, 16)
(11, 5)
(11, 17)
(7,5)
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Amonument at a park is in the shape of a right square pyramid. a diagram of the pyramid and its net are shown. what is the surface area of the monument? enter the answer in the box. m²

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.