Answer:
Billy is correct. Billy will not save money at all. He will lose [tex]\$38.99-\$35.99=\$3[/tex] and Julia will save [tex]\$59.99-\$38.99=\$21.[/tex]
Step-by-step explanation:
Billy wants to buy a jersey for $35.99 and Julia wants to buy a jersey for $59.99. The total cost is
[tex]\$35.99+\$59.99=\$95,98.[/tex]
If you buy one jersey at the regular price, the second jersey is half price and you must pay full price for the more expensive jersey, then they will pay
[tex]\dfrac{1}{2} \$35.99+\$59.99=\$77.985.[/tex]
Julia suggests that they buy two jerseys together and each of them pay half of the total cost, then each of them pays
[tex]\dfrac{1}{2}\$77.985=\$38.9925\approx \$38.99.[/tex]
Therefore,
Billy will not save money at all. He will lose [tex]\$38.99-\$35.99=\$3[/tex] and Julia will save [tex]\$59.99-\$38.99=\$21.[/tex]