Sandra walked to the top of a hill at a speed of 2 km/h, turn around and walked down the hill at a rate of 4 km/h. the whole trip took 6 hours. how many kilometres is it to the top of the hill?

Franklin neason earns $5,250 a month as a sales manager. what is his semimonthly salary? a.$10,500b.$5,250c.$2,365d.$2,625

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In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.