1. The problem asks: Which expression makes the statement "□ is 4 \times 10^9 as great as 2,000,000" true? 2. This means we want to find the value of □ such that: $$\text{□} = 4 \times 10^9 \times 2,000,000$$ 3. First, write 2,000,000 in scientific notation: $$2,000,000 = 2 \times 10^6$$ 4. Substitute this into the equation: $$\text{□} = 4 \times 10^9 \times 2 \times 10^6$$ 5. Multiply the coefficients and add the exponents of 10: $$\text{□} = (4 \times 2) \times 10^{9+6} = 8 \times 10^{15}$$ 6. Therefore, the expression that makes the statement true is: $$8 \times 10^{15}$$