1. **Problem 1:** A painter uses 0.8 gallons of blue paint for each mural and painted 3.5 murals. How many gallons of blue paint did she use? 2. **Formula:** Total paint used = gallons per mural $ \times $ number of murals 3. **Calculation:** $$\text{Total paint} = 0.8 \times 3.5$$ 4. Multiply: $$0.8 \times 3.5 = 2.8$$ 5. **Answer:** The painter used **2.8 gallons** of blue paint. 1. **Problem 2:** A librarian has 124.8 feet of shelf space and wants to divide it equally among 12 sections. How many feet per section? 2. **Formula:** Feet per section = total feet $ \div $ number of sections 3. **Calculation:** $$\text{Feet per section} = \frac{124.8}{12}$$ 4. Simplify division: $$\frac{\cancel{124.8}}{\cancel{12}} = 10.4$$ 5. **Answer:** Each section has **10.4 feet** of shelf space, which corresponds to option C. 1. **Problem 3:** Melinda earns 9.50 per hour and worked 7 hours. How much did she earn? 2. **Formula:** Total earnings = hourly rate $ \times $ hours worked 3. **Calculation:** $$\text{Earnings} = 9.50 \times 7$$ 4. Multiply: $$9.50 \times 7 = 66.5$$ 5. **Answer:** Melinda earned **66.50**.