Question: Heather is building a ladder for her tree house. She will need 13 feet of lumber for each stilt and 2 feet of lumber for each rung on the ladder. How many feet of lumber does she need for a ladder with 2 stilts and 12 rungs?\n\n\u25CB 29 feet because 2 + 13 + 12 + 2 = 29\n\u25CB 50 feet because 2(13) + 12(2) = 50\n\u25CB 160 feet because 13(12) + 2(2) = 160\n\u25CB 210 feet because (2 + 13)(12 + 2) = 210
1. **State the problem:** Heather needs to find the total feet of lumber required for a ladder with 2 stilts and 12 rungs. Each stilt requires $13$ feet and each rung requires $2$ feet.\n\n2. **Formula:** Total lumber needed = (number of stilts) $\times$ (feet per stilt) + (number of rungs) $\times$ (feet per rung)\n\n3. **Apply the values:**\n$$\text{Total lumber} = 2 \times 13 + 12 \times 2$$\n\n4. **Calculate each part:**\n$$2 \times 13 = 26$$\n$$12 \times 2 = 24$$\n\n5. **Add the results:**\n$$26 + 24 = 50$$\n\n6. **Answer:** Heather needs $50$ feet of lumber for the ladder.\n\n7. **Check the options:** The correct choice is \u25CB 50 feet because $2(13) + 12(2) = 50$.