Please answer this today - First correct answer becomes brainliest Suppose you know $x+2y=-1$ and $3y-x=-19$. What is $xy$?

Arectangular exercise mat has a perimeter of 36 feet the length of the mat is twich the width writeand solve an equation to determine the length in feet. of the mat then find the area in square feet of the mart

Iwill make brain if you me correctly fill this out needs due today pls and send it back to me (click the link and you will get it)

What are the solutions for the following system? -2x^2+y=-5 y=-3x^2+5