What is the solution of the linear system 3x-2y=1 - x+4y=-27

Why do we divide fractions?

If you get a rise from $12 per hour to $15 per hour, what is the percent change?

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Jeanine is twice as old as her brother Marc. if the sum of their age is 24. how old is Jeanine?

Three trillion in standard form

Aubrey's dinner cost / $85$85. She tips the waitstaff 30/%30% for excellent service.

Tony had a certain number of stamps that were each worth $0.15. He misplaced 7 stamps. He found that the total value of his stamp collection was now $5.55.

The figure below shows a rope that circles the Earth. The radius of the Earth is 6371 kilometers. Assuming the rope makes a perfect circle, what is the length of this rope? Give your answer in terms of pi.

Thomas ran a mile in 8 minutes at this rate how many minutes did it take them to run 3/4 of a mile

Which expression is equivalent to (6n - 5) - (2n - 3) ? (A) 8n - 8 (B) 8n - 2 (C) 4n - 8 (D) 4n - 2