Adriana made 30 pet collars to bring to the pet fair. she wants to display 3 pet collars on each hook. how many hooks will adriana need to display all 30 pet collars

10 hooks!

Step-by-step explanation:

if Adriana has 30 and wants to display 3 on each hook you would have to divide 30 by 3.

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

1. 3

2. 4

3. 1

hope this ! have a great day.

-wfz