Can someone me with this question?

50 will mark show all use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2x+9y= -26 -3x-7y=13

How does percent markup and percent discount relate to percent of change?

Write a subtraction problem that has mixed numbers and requires renaming. draw a model illustrating the steps you take to solve the problem.