Ireally need this answer, it’s to with my college placement test?

C

Step-by-step explanation:

Since the area of the squares are and , one base side is respectively because we can use the formula for a square.

We can use the same to solve for a side for the bigger square.

Now we can find the perimeter which is

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

idk im srry

step-by-step explanation: