How and where did algebra get its beginning? why was it developed in this time and place?

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33

The box plots show the average speeds, in miles per hour, for the race cars in two different races. which correctly describes the consistency of the speeds of the cars in the two races?

Write 5 in the form of a/b using integers to show it as a rational number