It is most definetly A. the others wouldn't make any sense.
Area = πr². So you have the diameter which is 56 millimeters. And the radius (r) is half the diameter, so the radius would be 28 mm. Square 28 would be 784, multiplied by π would equal 2463.00864mm. Rounded to the nearest hundredth would be 2843.01mm².
A+ny = n
a = n-ny
a = (1-y)n
a/(1-y) = n
n = a/(1-y)
Answer: It’s not 17.5 I can tell you that:(( just got it wrong
Step-by-step explanation:
