There are 3 pancakes for every person

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

Can someone check if i did this correct. it’s number 4 if you’re wondering.

It is given that the quadratic equation hx²-3x+k=0, where h and k are constants, has roots [tex] \beta \: and \: 2 \beta [/tex]express h in terms of k