PLEASE HELP ME I WILL MARK BRAINLIEST

$36

Step-by-step explanation:

I think the part that is confusing you is how to read the math syntax.

The part that says "" just means that a=1 is your starting number. The n=1 is the first iteration.

The part that says "" just means that you add 5 to the previous number every iteration.

They want you to find the number at 8th iteration, n=8. So lets work it out.

n=1:  a= 1

n=2: a= 1+5 = 6

n=3: a= 6+5 = 11

n=4: a= 11+5 = 16

n=5: a= 16+5 = 21

n=6: a= 21+5 = 26

n=7: a=26+5 = 31

n=8: a= 31+5 = 36

Or you can use the shortcut:

You're always adding by 5 each time and starting with 1, so:

where n=8 for the 8th round.