- How do I solve by substitution? 7x-2y= -14. y=7x+7?

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A rectangle has a length of 5.50 m and a width of 12.0 m. What are the perimeter and area of this rectangle? How to write an account about a weather event. Please help me with this! Thank you so much.? If a dog runs with a speed of 2.7 m/s, and the owners each walk with a speed of 1.3 m/s, how far has the dog traveled when the owners meet? Explain the importance of the cleansing procedures for drawing blood cultures and for blood donation? In" It Can’t Happen Here" By Sinclair Lewis, can you explain what happens in chapter 7,8,9 and how it relates to modern history now?