A square has sides 7.4cm long.
work out the area of the square.

Area of a square = Side x side

Area = 7.4 x 7.4

Area = 54.76 cm^2

Area of the square = (Side of the square)²

Area of the square = (7.4 cm)² = 54.76 cm²

step-by-step explanation:

mean or average is 40.6

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.