A ramp has a slope of 30º. The height of the ramp is 2.4 m.

Janelle walks from the top to the bottom of the ramp at a speed of 1.2 m/s.

How long did it take her in seconds

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letter a is the answer

the alfred thayer mahan award for literary achievement is awarded each year by the navy league of the united states. the award is named for an american naval historian and theorist, rear admiral alfred thayer mahan, united states navy who, through his writing, provided stimulus and guidance to those who share in the defense of the nation. presented since 1957, "this award for literary achievement is awarded to a u.s. navy officer, u.s. marine corps officer, enlisted service member, or civilian who has made a notable literary contribution that has advanced the knowledge of the importance of sea power in the united states."[1]