<span>For this IF function, look at cell A1. The logical test asks if the value in A1 is less than 100,000: in this case, the value of 90,000 would be less. If the value in A1 is under 100,000, the value is to be multiplied by 0.05 (5%), and multiplied by 0.075 if it is 100,000 or greater (7.5%). For a value of 90,000 * 0.05, the value that would be displayed in the cell with the IF function would be 4,500.</span>
We know that the perimeter of a cylinder is 2πr we will find it as we do always. The perimeter will be : 2 pi r = 2 pi * 20 = 40 pi Because it says rounded to the nearest tenth the answer will be : 125.6 cm^3 Because we have a half of a cylinder we will just divide the answer we got by 2: 125.6cm^3 /2 =62.8 The answer is 62.8 cm^3