Answer:
314
Step-by-step explanation:
Area is pie(r^2
10x10=100
100x3.14 is 314
Determined by the signs multiplication is × or using it or could be 2 numbers attached like this 2y but for deciding it's a ÷ or / but that is some of the signs
Matrix A was expressed in the form of a 2x2
i'm not sure if this helps or not but here you go