The person who answered already is correct
31 because two more tens is equal to 20. so 20+11 is 31
2x-y=11 ,6x-3y=15
4x+4y=26
-4y. -4y
4x=22
4. 4. divided
x=5.5 if its wrong and fix something that's wrong
Answer:
Step-by-step explanation:
The circumference of a circle is also the perimeter of the circle. The formula for determining the perimeter of a circle is expressed as
Perimeter = 2πr
Where
r represents the radius of the circle.
π is a constant whose value is 3.14
Therefore,
Circumference = 2 × 3.14 × 4 =
25.1 feet rounded to the nearest 0.1
The formula for determining the area of a circle is expressed as
Area = πr²
Area = 3.14 × 4² = 50.2 square feet rounded to the nearest 0.1