(Please serious answers only :( ) Kaeleb made an apple pie in the shape of a triangle. The side lengths of his pie are 9 centimeters. He wants to reduce each side by “x” centimeters so that the triangle is still equilateral and has a perimeter of 21 centimeters.
How many centimeters did Kaeleb reduce his triangular-shaped pie by?

He needs to reduce it 3 times so that the side lengths would 7.  

Step-by-step explanation:

because 7+7+7=21

I hope this helps :p

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!