05. Supplies for School

function suppliesForSchool(input) {
    let pens = Number(input[0]) * 5.8;
    let markers = Number(input[1]) * 7.2;
    let detergent = Number(input[2]) * 1.2;

    let sum = pens + markers + detergent;

    console.log(sum * 0.75);
}