5. What is the surface area of the rectangular prism below?
12 m
6 m
5 m
A 60 m
B 72 m
C 162 m
D 324 m

d is the best option you should try

Step-by-step explanation:

answer: can you me with homework?

step-by-step explanation:

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