What does this answer i need to know as fast as possible in other words asap

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

the answer is a

step-by-step explanation:

because your just changing the position of where the shape is

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation: