I believe it's 3 because 4 times 3 equals 12 and 12 plus 8 equals 20!
4(3)+8=20
Hoped this helped! :)
The correct answer is <span>{-5/2, 10/3}.</span>
It is the third option: {1, 2, 3}
Plug in values.
7x2y =
7(5)2(3) =
210 <---------------------Answer