Need help ASAP thankyou sorry if u can’t see the picture but u can zoom in :)

Solve the system of equations y= 3/2 - 1, -x+ y =-3

Find the area of the regular hexagon if a side is 20 cm.

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)