Identify the classification to which this figure belongs . You must select all that apply

Maria donates a fixed amount, a, to a charity each month. if she donates $300 in 12 months, what is the equation for a? a. a + 300 = 12 b. a × 300 = 12 c. a × 12 = 300 d. a + 12 = 300 e. a + 32 = 100

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

Sum is 17 and their difference is 3