A. Is 4, 5, or 6 the solution of the equation c + 8 + 13? b. Solve 9 - x = 2 mentally.
c. The difference between an ostrich's speed and a chicken's speed is 31 miles per hour. An ostrich can run at a speed of 40 miles per hour. Use mental math or the guess, check, and revise strategy to solve the equation 40 - c = 31 tp find the c, the speed a chicken can run.

a.
b.
c.

i believe the answer is c.

yes   because as the functions are graphed they eventually will intersect unless otherwise

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.

why are you giving so many marks make your marks less and make a question list so that i can understand your question very nicely