How did Newton's ideas about the orbits of the planets differ from keplers ideas?

What was istanbul called before he ottomans conquered the city in the 15th century

Which sequence of transformations on preimage ∆abc will not produce the image ∆a'b'c'? a. reflection across the line y = x b. rotation 180° clockwise about the origin followed by a reflection across the line y = -x c. reflection across the x-axis followed by a reflection across the y-axis d. reflection across the line y = -x followed by a rotation 180° counterclockwise about the origin e. reflection across the y-axis followed by a rotation 90° clockwise about the origin

Amountain is larger than a hill, with steep sides true or false