Find the measures of the angles. Angle 1
Angle 2
Angle 3

61
90
29
27

In what form is the following linear equation written y=9x+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.

Which of the following contains a variable?