Which organelle is responsible for the synthesis of proteins?

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

Are the earth's ocean floor and continents the same age geologically? why or why not?

Lola needs to sign 6 invitations. using stopwatch that measures time to tenths of a second, it takes lola 5.3 seconds to sign her full name. going by the accuracy of the stopwatch, which is the most accurate determination for the number of minutes lola needs to sign all 96 invitations