**answer 2**

A= r2 × 3.14 11×11 ↓ ↓ 121 × 3.14 = 379.94 → 379.9

**answer 3**

Are you trying to determine the volume?

**Answer 1**

The possible dimensions of the rectangle are (x+7) and (x -4). Walkthrough: Here, the expression given for the area of the rectangle is: Now Area of the rectangle = Length x Width Therefore, to find the dimensions, we need to factorize the given trinomial. So ⇒ ⇒ Walkthrough: