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One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.