6) Sonar
7) Subduction Zone
9) Subduction
20h+40 two h plus eighteen h is 20h, while eight plus 32 is 40. subsitute eight into it, u get 160, then add 40, which is 200
$200
1/8 + 3/4 = 1/8 + 6/8 = 7/8 (to the right)
1/8 - 3/4 = 1/8 - 6/8 = -5/8 (to the left)
Answers are 7/8 and -5/8.
If your bottom time is 25 minutes, general rules recommend that you ascend immediately to 15 feet then remain there for 8 minutes. You should then go to the surface and not dive for 6 hours.
<h3>What do general rules on diving say about a 25 minute bottom time?</h3>
The recommended bottom time is 24 minutes which means that staying there for 25 minutes will have exceeded this recommendation.
You should immediately ascend to 15 feet or 5 meters, and then wait there for 8 minutes. Then return to the surface and avoid diving for the next 6 hours.
Find out more on rules for physical activites at brainly.com/question/1862654.
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-4x+3+2x-6
The answer is -2x-3