Answer: To find the points on the line that represent the amount Lori might trade, we need to locate the points that are greater than 3/10 but less than 4/5. We can do this by drawing a number line and marking the points:
0 ----------------------|---------------------- 1
3/10 4/5
Lori wants to trade more than 3/10 but less than 4/5 of her stickers, so any point between 3/10 and 4/5 (excluding the endpoints) represents an amount she might trade. For example, she might trade 1/2, 2/3, or 3/4 of her stickers.
To find the fraction of stickers Lori might trade, we can subtract the lower bound from the upper bound:
4/5 - 3/10 = 8/10 - 3/10 = 5/10
Therefore, Lori might trade any fraction between 3/10 and 4/5 (excluding the endpoints), and the fraction of stickers she might trade is 5/10, which simplifies to 1/2.
Explanation: