Ethan created three triangles: triangle X, triangle Y, and triangle Z. If Triangle Y is congruent to triangle X and Triangle Y is congruent to triangle Z, which must also be true?

Which of the fallowing best completes the sequence 12,8,5, a) 1 b) 2 c)4 d)0

Mexico city, mexico, is the world's second largest metropolis and is also one of its fastest-growing cities with a projected growth rate of 3.2% per year. its population in 1991 was 20,899,000 people. use the formula p = 20.899e0.032t to predict its population p in millions with t equal to the number of years after 1991. what is the predicted population to the nearest thousand of mexico city for the year 2010?

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2