How do I do this ? 19 points will mark brainlest

This is easier than you thought. 3.2 is equivalent to 3.20 so the spaces between would be 3.21, 3.22, 3.23 etc. the blue dot is 3.21

Step-by-step explanation:

-3.21

Step-by-step explanation:

You can assume that between the "-3.2" and "-3.25" has a gap of 0.5 units

Seeing as there are 5 tick marks, each one must represent 0.1 units

-3.2+(-0.1) = -3.21

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

you can download it here