A submersible is a type of underwater vessel. Suppose a submersible starts at a depth of 40 feet below sea level, represented by – 40 feet. The table shows the submersible change in depth from one minute to the next.
180 feet lower
175 feet lower
185 feet lower
Answer the questions to find the depth of the submersible after 3 minutes.
1. Write and evaluate a subtraction expression to find the depth of the submersible at 2:16 p.m.