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CORRECT ANSWER GETS BRAINLIEST

16

Step-by-step explanation:

We can count the number of sides of the shape, with every gridline being 1 unit.

The perimeter is the outline of the shape.

There are 16.

16*1 unit = 16

I hope this helps!

lol we need to see what the question is asking about

step-by-step explanation:

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for