Break it into four parts:
(1) IF
(2) Mouth finds One-Eyed Willy's treasure
(3) THEN
(4) his family can save their home
This is an "IF,THEN" problem, called a "CONDITIONAL".
The symbols most people use are
Connective Symbol
Negation ¬ (NOT) sometimes ~
Conjunction ∧ (AND) sometimes &
Disjunction ∨ (OR) just a capital V
Conditional → (IF-THEN) sometimes ⊃ or you can type -->
Biconditional ↔ (IF AND ONLY IF)
Therefore ∴ (THEREFORE)
Choose a capital letter for statement (2), say M, (for its first letter)
Choose → ⊃ for the conditional (IF-THEN)
Choose a capital letter for statement (4), say H, (for its first letter).
Answer: M → H, or if you prefer M ⊃ H
Edwin