A computer cost $800. It loses 1/4 of its value every year after it is purchased. complete the table to show the value of the computer at the listed times.

Can someone me with my math problems i have a bunch. i will give brainliest and lots of pleeeaaasssee

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 is this equation completed? i cannot find any examples in the book.