Joy is preparing 19 liters of a 15% saline solution. She only has 20% and 10% solution in her lab. How many liters of the 20% and how many liters of the 10% should she mix to make the 15% solution?

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth

Venita is sewing new curtains. the table below shows the relationship between the number of stitches in a row and the length ofthe row.sewingnumber of stitches length (cm)51 131532024306what is the relationship between the number of stitches and the length? othe number of stitches istimes the length.o. the number of stitches is 3 times the length.