14.4÷2~7.
You can estimate 14.4 as 14 and simply divide by 2.
The goal of estimating is to be able to do an educated guess mentally
Answer:

Step-by-step explanation:

3x = 36 x 5
3x = 180
x = 60
Michael has 60 marbles.
Nick recieves 9 more marbles so he has 36 + 9 = 45 marbles
The new ratio will be:
= 
Answer:
Use the view example tool
Step-by-step explanation:
Use the view example tool and just plug in your number's instead of theirs. I did the same and I got it right.
Answer:
4
Step-by-step explanation:
The slope is 4 because the x part of the equation is the slope.
David will have 2.57 seconds to get to mark and it’s 50 meters