Brainliest to the fastest and most accurate answer!

The answer to number 3 would be 6 on the number line, open circle, and then a line dashed to 42, and 4 on the number line, closed circle, and a closed line to 7.

The answer to number 4 would be -8 on the number line, open circle, and then a line dashed to 2, and 9, open circle closed line to 81.

by definition, an arc subtended by a central angle of some given measure has the same measure. so .

here is your mark brainliest