Answer:
Sinea spent more on souvenirs.
Explanation:
Set the proportions for Sinea which is 5/12 and she spends $40 on snacks so 40/5 is 8. Now you multiply 8 by 12 so Sinea spent $96 on souvenirs.
Set the proportions for Ren which is 10/20 and he spends $40 on snacks so 40/10 is 4. Now you multiply 4 by 20 so Ren spent $80 on souvenirs.
$96>$80 so Sinea spent more.