Find the surface area of a sphere with a diameter 12 cm. Round your answer to the nearest whole number

SA = 144π or 452 cm

Step-by-step explanation:

Surface area of a sphere: SA = 4πr²

To find r radius, we simply divide diameter by 2 to get r = 6. Now we simply plug in 6:

SA = 4π(6)²

SA = 4π36

SA = 144π or 452.389

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step-by-step explanation:

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.