A scientist uses a submarine to study ocean life. She begins at sea level, which is an elevation of 0 feet.
She descends for 94 seconds at a speed of 3.3 feet per second.
She then ascends for 32 seconds at a speed of 1 feet per second.

At this point, what is her elevation, in feet?

69 seconds

Step-by-step explanation:

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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