Kelly went to an office supply store. Gloria bought 5 pencils, 7 markers, and 8 erasers. Her total was
$19.00. Tina spent $21.00 buying 7 pencils, 5 markers, and 8 erasers. Kelly bought 4 pencils, 8 markers, and 7 erasers for
$17.75. What is the cost of each item?