Answer:
Not if you want it to be a positive number. You can but it will be a negative.
Step-by-step explanation:
I don't see an inequality, but I can tell you that the sign of the inequality is flipped whenever you multiply or divide by a negative number.
The answer is 140 feet because 10×14 is 140
-50 feet because you have to add 2 to 30 and since it is below sea level, it is a negative
