Which number is IRRATIONAL? 3/4

3.125___(repeating decimal)

7.9

the square root of 2​

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?