Final answer:
Leann has $0.51 more in her wallet than Shannon.
Step-by-step explanation:
Leann has $3.38 in her wallet, and Shannon has $2.87 in her wallet. To find out how much more Leann has in her wallet than Shannon, we need to subtract Shannon's amount from Leann's amount.
Leann's amount - Shannon's amount = $3.38 - $2.87 = $0.51
Therefore, Leann has $0.51 more in her wallet than Shannon.