Spirit Day is on Friday. There is usually high participation among the 1,300 students in the school. To get an idea of how many students will participate, the Senior Class President conducts a survey and gets 250 responses. The survey was sent to students using their school email. Every student has designated computer time every day to check their email. The survey responses indicate that 200 students will participate in Spirit Day while 50 will not.
Using the statistic of interest
a. 5/4
b. 4/5
c. 1/4
the Senior Class President can then predict that the total number of participants would be approximately
a. 1,040
b. 975
c. 676

i need a picure

step-by-step explanation:

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.