Which of the following summarizes the reasons Egypt transitioned from the Old Kingdom to the Middle Kingdom to the New Kingdom? A. constant military expansion and blending of cultures

B. pharaohs challenged by nobles from within and outside invaders

C. the Kingdom of Kush’s subtle strategy and rise to power

D. Tutankhamen’s death and a treaty with the Hittites

How does the parallax of a nearby object compare to that of an object farther away?

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

To solve this system of equations by elimination, what operation could be used to eliminate the y-variable and find the value of x? 6x + 5y = 2 4x + 2y = 8 a) subtract 2 times the second equation from 3 times the first equation b) subtract 3 times the second equation from 2 times the first equation c) subtract 5 times the second equation from 2 times the first equation d) subtract 2 times the second equation from 5 times the first equation