Across-country skier reaches the 3-km mark of a race in 15 min and the 12-km mark 45 min later. find the speed of the skier.

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

One month, a music site observed that 60% of the people who downloaded songs from its site downloaded q sam's latest single. the equation below represents this information, where x represents the total number of people who ddownloaded songs from the site that month: x = 0.6x + 384 how many people who downloaded songs from the site that month downloaded q sam's latest single?

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?