9. a submarine dove 400 feet. it then
rose at a rate of 20 feet per minute.
what was the depth of the submarine
after 18 minutes?

Triangle xyz has vertices x(1,3), y(0,0)

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.