How do you solve this?

-x+y=7

6x+y=14

Write the partner. 8 + = 12

What is the nth term of 12 10 8 6 4?

What values of x and y satisfy - 13/3x-2y=7 and 3x+2/5y=5 simultaneously

Original price: $261.27 Markdown: 72% The sale price is

jimmy lives 6/10 of a mile from the observatory. sylvia lives 2/5 of a mile from the observatory. how much closer is sylvia to the observatory? explain all the steps you used to find your answer.

For which polygon is the sum of the interior angles equal to 540?

Use the following coefficients of a quadratic equation: a=2 b=4 c=-6 What are the solutions to the quadratic equation?

Which pair of equations represents perpendicular lines? a x+2y=8 : 2x-y=-8 b x+2y=8 : 2x+y=8 c x+2y=8 : - x-2y=8 d x+2y=8 : -x-2y=-8

4 * (2.1+3.9) - 7) + 6 * (6.2-4.2) =

Juanita sells homemade jam at the farmers' market. She sold 35 jars during the first hour and 85 jars during the second hour. Write an alegbraic expression to show the number of jars Juanita has left to sell.