1. **Problem 4:** Toby has raised 225 which is 60% of his goal. We need to find how much more he needs to raise to meet his goal. 2. **Formula:** If $x$ is the goal amount, then $60\%$ of $x$ is $225$. So, $0.60x = 225$. 3. **Solve for $x$:** $$x = \frac{225}{0.60} = 375$$ 4. Toby's goal is 375. He has raised 225, so the amount he still needs is: $$375 - 225 = 150$$ 5. **Answer for problem 4:** Toby needs to raise 150 more. --- 6. **Problem 5:** Lisa has raised 750 which is 120% of her goal. We need to find how much extra money she has raised. 7. **Formula:** If $y$ is Lisa's goal, then $120\%$ of $y$ is $750$. So, $1.20y = 750$. 8. **Solve for $y$:** $$y = \frac{750}{1.20} = 625$$ 9. Lisa's goal is 625. She has raised 750, so the extra amount is: $$750 - 625 = 125$$ 10. **Answer for problem 5:** Lisa has raised 125 extra. **Grade guess:** These problems are typical of middle school math, around grade 6.