2. Write the first five terms of each sequence. Determine whether each sequence is arithmetic, geometric, or neither.
a. a(1) = 7, a(n) = a(n-1) - 3 for n > 2.
b. b(1) = 2,b(n) = 2•b(n − 1) – 1 for n greater than or equal to 2.
C. c(1) = 3,c(n) = 10 .c(n − 1) for n greater than or equal to 2.
d. d(1) = 1, d(n) = n• d(n – 1) for n greater than or equal to 2.

step-by-step explanation:

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°