9 is a square number because when you use the dot diagram, 9 dots form a square. They are in a 3 by 3 square.
I attached how to show this.
If you have any further questions feel free to ask.
Hope this helps.
14 students play a brass instrument :)
/Answer:
the verry last one
Step-by-step explanation:
He goes 1.5k/h. To get that you divide the km by the hour. Then multiply the hour by 1.5 to get the km. (Ex. 2hrs x 1.5km = 3km)
Yep! the plotted points are (2,1) and (0,5) the slope is -2