What is the range of 8,9,9,8,8,5,8

The range is 4

Step-by-step explanation:

To find the range, you subtract the lowest number from the highest number.

Example:  If the set was:  1, 2, 6, 6, 8, 10

What is the highest number:  10

What is the lowest number: 1

You will do this -> 10 - 1 = 9

Problem:  8, 9, 9, 8, 8, 5, 8

What is the highest number:  9

What is the lowest number:  5

9 - 5 = 4

 The range is 4

Step-by-step explanation:

radius (r) = 8cm

circumference = 2π×r

= 2 × 3.14 × 8

= 50.24cm

area = π × r²

= 3.14 × 8 × 8

= 200.96cm²