5k²-8k-45k+72 = 5k²-53k+72
Answer: 5k² - 53k + 72
Answer:
<h2><em><u>7d + 4f - 15</u></em></h2>
Explanation:
-3 + 4d - 2f + 3d + 6f - 4 - 8
= −3 + 4d + −2f + 3d + 6f + −4 + −8
= −3 + 4d + −2f + 3d + 6f + −4 + −8
(4d + 3d) + (−2f + 6f) + (−3 + −4 + −8)
7d + 4f + −15
= 7d + 4f - 15
J. -8 is the correct answer
52 lbs you get the answer by adding the two weights of the bags