5 POINTS PLEASE HELP

Alan found the distance between point A(-8,-4) and point B(3,-4), his work is shown below.

-8 to the y-axis=8 units

3 to the y-axis = 3 units

(-8) - (3) = 5 units from A to B

What error did Alan make? What is the actual distnace from point A to point B?

Enter numbers to write 0.000328 0.000328 in scientific notation. 1 1 0.000328=3.28 × 0 . 000328 = 3 . 28 × =3.28×10 = 3 . 28 × 10

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?

Math i have no idea how to do a and b