Question

A submarine starts at the surface of the water. The sub then goes down 100 feet. Over the next three hours, it goes down 150 feet per hour. After this time, what is the depth of the submarine?

Answer 1

Answer: -3

Step-by-step explanation:

Calculate within parentheses.

-3(-1)-6

Multiply

3 - 6

-3

Answer 2

-3(-3+2)-6
-3*(-3+2)-6
-3(-1) - 6
3 - 6
= -3