Help me with this please

Write a real-world solution that can be represented by the equation y = 7x be sure to explain what the variables represented in the solution

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

Type the correct answer in each box. use numerals instead of words. if necessary, use / fir the fraction bar(s). the graph represents the piecewise function: h