Pls help reporting wrong answers I am having trouble

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

Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27

How are algebraic expressions evaluated using substitution?