The blacksmith had two identical iron wires, which were used for making two chains containing 80 and 100 links accordingly. Each of the links in the shorter chain was 5 grams heavier than that in the longer one. What was the weight of each chain ?
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Which expression is equivalent to? assume x > 0 and y > 0.

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Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x − 8 y is greater than or equal to negative 5 over 2 times x plus 5 part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points) part b: is the point (5, −8) included in the solution area for the system? justify your answer mathematically. (4 points)