Mikel has $20 to spend at the aquarium. The aquarium charges a $10 admission fee.
The aquarium also has special exhibits that cost $4.00 each to view
Which equation can be used to determine the amount of money, y, that Mikel has left if he views x exhibits?

A y=4−10x
B y=4x-10y=4x−10
C y=10x-4y=10x−4
D y=10-4xy=10−4x

21.4 i did it already for s1

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.