A scuba diver is positioned at-30 feet. How many feet will she have to rise to change her position to -12 feet?

-18

30 - 12 = ?

30-12=18 she will have to rise 18ft

-18 ft

42 ft

the answer is

To find out how many feet the scuba diver needs to rise to change her position from -30 feet to -12 feet, you can subtract the initial depth (-30 feet) from the final depth (-12 feet).

The calculation would be: -12 feet - (-30 feet) = -12 feet + 30 feet = 18 feet.

So, the scuba diver will have to rise 18 feet to change her position from -30 feet to -12 feet.