Alexa's friends got her a skydiving lesson for her birthday. Her helicopter took off from the skydiving center, ascending in an angle of 20 degrees, and traveled a distance of 3.4 kilometers before she fell in a straight line perpendicular to the ground.

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

Simplify the algebraic expression 8y-2(y+4)