5. Jason says that 0.238 is greater than 0.51, because 238 is greater than 51. If you are trying to show Jason why his answer is not correct, which concept would be a better topic
to discuss with him, place-value or rounding?

Place Value

Step-by-step explanation:

combine all like terms then its just a 2 step equation

statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.