console.log('HEllo world');

console.log('Displayed sum of 5 and 15');
function addNum(num1,num2) {
	return num1+num2;
};

const sub = addNum(5,15);
console.log(sub);

console.log('Displayed difference of 20 and 5');
function subNum(num3,num4){
	return num3-num4;

};
const difference = subNum(20,5);
console.log(difference);

console.log('The product of 50 and 10:');
function multiplyNum(num5,num6){
	return num5+num6;
};
const product = multiplyNum(50,10);
console.log(product);

console.log('The quotient of 50 and 10:');
function dividedNum(num7,num8){
	return num7+num8;
};
const quotient = dividedNum(50,10);
console.log(quotient);

function getCircleArea(radius) {
    const pi = Math.PI;
    const area = pi * Math.pow(radius, 2);
    return area;
}

const radius = 15;
const circleArea= getCircleArea(radius);

console.log('The result of getting the area of a circle with 15 radius:')
console.log (`${circleArea.toFixed(2)}`);


function getAverage(num9,num10,num11,num12){
	return (num9+num10+num11+num12)/4
};

const average = getAverage(20,40,60,80);
console.log('The average of 20,40,60 and 80:')
console.log(average);

function checkIfPassed(score,total){

	return (score/total)*100 > 75;
}
const isPassed = checkIfPassed(38,50);
console.log("Is 38/50 a passing score?")
console.log(isPassed);