PLLZZ HELP ME OUT WITH THIS 1. A driver’s elevation is -30 feet relative to sea level. She dives down 12 feet. What is the elevation after the dive?Show your work. (20 points)

2. Explain(In your own word) how to model -5+5+(-2) on the number line. (20 points)

3. How do you subtract an integer from another integer without using a number line ? Give an example. (20 points)

4.Solve following problems(Show your work for subtraction):(40 points)

(-1)+(-5)= b) (-1)+(9)= c)1-(-2)=

d) 19-(-19)= e) -87-(-87) f) 0-(-5)=