functions.js

function calculateAreaOfPie(diameter){

    const radius = diameter / 2
    const area = Math.PI * (radius ** 2)
    return area

}

function pricePerSqIn (area, price){
    return price / area

}

{

  {


    
  }


}

const diameter = 16
const cost = 21.99
const area = calculateAreaOfPie(diameter)
const pricePerUnitArea = pricePerSqIn(area, cost)

console.log(`a ${diameter}" pizza costs $${pricePerUnitArea.toFixed(2)} / sq. in.`)