Achemist weighed three separate test samples at 0.17 gram, 0.204 gram, and 2.3 grams. what is the total weight of the three samples? a. 2.521 grams b. 2.44 grams c. 2.674 grams d. 3.97 grams

What is the value of x? enter your answer in the box. (cm)

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.