Which of the following best describe how paragraphs 15-16 contribute to Khan’s Claim? A. They show how the goals of education are always changing and improving.
B. They acknowledge why mastery-based learning continues to be difficult today.
C. They show why mastery-based learning is necessary, despite potential challenges.
D. They challenge potential counter arguments about mastery-based learning.

From let’s teach for mastery-not test scores by sal khan.

From his studies of coptic, champollion knew that the egyptian word for "sun" was pronounced rah. he wrote down the first two letters of that sound, ra. next he put a question mark for the unknown middle hieroglyph. then, at the end, he wrote ss, the sound of the last two hieroglyphs. he studied the combination: ra ? ss. suddenly he remembered a famous pharaoh whose name appeared in ancient greek chronicles and also in the biblical book of exodus: rameses, or ramesses. could this be a hieroglyphic representation of ramesses' name? based on the excerpt, what detail did champollion need to conclude that the hieroglyphics might represent ramesses’s name?

How does the dialogue between henry and his friends? “californians tale”

Pls pls pls i will give u brainliest in the story open window, what is the significance of the open window?