How did advancements during the gupta period transform mathematics? a. they invented algebra. b. they created the concepts of square numbers and square roots. c. they developed a decimal system with a numeral for zero. d. they made progress in metallurgy.

The answer is: C

One of the major contributions to the field of mathematics during the Gupta dynasty was the introduction of the first decimal system and the introduction of the number of zero. This paved the way for the establishment of new equations, theorems, and notations.

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering

soviet influence spread across eastern europe sharply during and after wwii. the soviet armies liberated the countries in eastern europe and occupied them from the germans as they were forced to retreat towards germany.