First, you need to find out how many berries she can pick in 1 minutes (aka the rate). To do this divide 135 by 15. 135/15=9. So she picks 9 berries per minute. To find how long it will take to pick 486 berries, divide 486 by 9. 486/9=54. So it will take her 54 minutes to pick 486 berries. Hope this helps (ﾉ◕ヮ◕)ﾉ*:･ﾟ✧
