I would like to ask an expert.

Assignment: Dimensioning

PROBLEM $1.$ Give the reasons why these dimensions are incorrect. Use the image attached.

My current answers:

$1.$ The extension line is too far from the edge$/$object$,$ and it should go a little bit over the arrowhead of the dimension line.

$2.$ The extension line is touching the center line of the circle.

$3.$ The arrowhead is pointing the center of the hole, it should point to the circumference of the hole.

$4.$ The dimension number $"6"$ is too far from the dimension line.

$5.?$

$6.$ The extension line should go a little bit over the arrowhead of the dimension line.

$7.$ The dimensioning is too far from and object, and too close to the other view.

$8.$ The dimension number is too close to the dimension line, and is touching it$.$

$9.$ The arrowheads are not touching the extension lines.

$10.$ The dimension must be tool cutting distance $($edge to the center$).$ And the dimension number should be above the line.

$11.$ The extension line is touching the edge$/$object$.$

$12.$ The dimension number should be centered.

$13.?$

$14.$ The extension lines should go a little bit over the dimension line.

$15.?$

$16.?$

$17.$ The dimension number is on the wrong side. It should be right side readable.

$18.$ There is no arrowhead on the the line pointing to the arc.

Please help me with the numbers I have left.