Answer:
The candle must burn at 2cm per hour in order to be 6cm tall after 4 hours. I know this because the candle has to burn 8cm in 4 hours and that amounts to 2cm per hour.
Step-by-step explanation:
Lets solve!
We have to find out how much of the candle needs to be burned!
14cm - 6cm = 8cm
The candle must burn 8cm in 4 hours!
Lets find out how much the candle burns in 1 hour.
= 2cm per hour
The candle must burn at 2cm per hour in order to be 6cm tall after 4 hours. I know this because the candle has to burn 8cm in 4 hours and that amounts to 2cm per hour.
Woohoo, We did it! <u>Would you like to mark my answer as brainliest?</u> I would love that!
Answer:

Step-by-step explanation:
To solve this question, we will first expand the expression using the distributive rule: 
Therefore:

Simplify:

Add up like terms:

Answer:
Add all and you will get the answer...........
Answer:
6.8(6.7 – 7.2) – 2(4.6 + 1.2) =-15
Step-by-step explanation: