4. The prom committee sells t-shirts to raise money for the prom. The protit from sales of 80 short sleeve t-shirts and 100 long sleeve t-shirts s $320. Profit from sales of
80 short sleeve t-shirts and 75 long sleeve t-shirts is $270. How much profit do they
carn for each short sleeve t-shirt sale?

the answer is 1030 it's very simple math.

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.

to be honest i don't know but i need points so