Pasagot sa math plss

31. regada festival4x - 3y = 342. sorteo festivaly=x-46 3. sumilang festivaly=x-122 4. kawayan festival4x - y = 328 s. pahimis festival​

Idont know if this is too many questions but i only got 1 day to finish this, so please help i dont wanna get a zero on my math : (compute the following: 1.) [tex]{x}^{2} + 3x + 4x - 1[/tex]2.) [tex] {2x}^{2} - 4) \: ( {x}^{2} - 1)[/tex]3.) [tex]4x \: (x + 1)[/tex]4.) [tex](x + 2) \: (x - 2)[/tex]5.) [tex] \frac{ {a}^{3} }{a} \frac{ {b}^{2} {c} \frac{ {c}^{2} }{c} [/tex]​

Evaluate the value of n: 77+7×2-(14+2+2)-2×5+3=na.12b.10c.8d.6​