Between 9 pm and 6:54 am, the water level in a swimming pool decreased by 9/20in. Assuming that the water level decreased at a constant rate, how much did the water level drop each hour?

Which of the following contains a variable?

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.

Which one is the correct answer, and why?