Ineed numbers 18 20 and 21 answered this is my math homework need y’all to reply it needs to be done by 11

18. The stand is 4 1/2 feet.

The arm should be 1/4 the way down.

Divide 4 1/2 by 4:

4 1/2 / 4 = 1 1/8 feet.

20.

F is a 90 degree. H is more than 90.

G looks like it is 45

I would say the answer is J.

21.

Perpendicular means the two pieces would be 90 degrees from each other.

This would be A.

this is a very good question

step-by-step explanation:

i got a hair cut today from my mom not to flex just to flex kim jon un is one rad fellow i'd say you'd need to take the hairline in kinda like a box shape like someone rammed a lego brick into your head. from there you really need to take the top up keeping with that boxy aesthetic, finally coat the whole thing with gel if your country economics are failing or whatever you can just coat it with the starving children's food rations. about 5 orphans per strand is a good ratio. good luck with the fresh cut my dude