Please help, i'm timed. i'll give brainliest.

The fourth dot is the correct answer.

Step by step:

1. The symbol is "less than", which means the arrow on a graph will be travelling left because the head of the arrow will point to the left.

2. It is an open dot because if it were closed, it would've had a "less than or equal to" symbol. ( Ex. ≤)

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

figure c

step-by-step explanation:

hope this .