Karst topography forms in regions, where bedrock that is easily dissolved by groundwater (SCIENCE) acidic
alkaline
neutral
none

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

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?

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)