Which expressions are equivalent to -56z+28? A.) 1/2⋅(-28z+14)

B.)(-1.4z+0.7) x 40

C.) (14-7z)⋅(-4)

D.)(8z−4)(−7)

E.)−2(−28z−14)

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What is the slope of the line passing through the points (3, 3) and (5, 7) ? 1. 2 2. 1/2 3. −2 4. −1/2

38 points and brainliest plz answer question in word document

Let x have probability generating function gx (s) and let un generating function u(s) of the sequence uo, u1, satisfies p(x > n). show that the (1- s)u(s) = 1 - gx(s), whenever the series defining these generating functions converge.