Question

1. which of the following is the shortest length?

1 mile
2 yards
6 feet
70 inches

1. the length of sara’s foot is almost 7 inches long. she measured the length of a room to be 21 time length of the room in feet?

21 feet
12 feet
84 feet

Explanation:

Step1: Convert all to inches (Q3)

1 mile = $5280 \times 12 = 63360$ inches; 2 yards = $2 \times 3 \times 12 = 72$ inches; 6 feet = $6 \times 12 = 72$ inches; 70 inches = 70 inches

Step2: Compare lengths (Q3)

$70 < 72 = 72 < 63360$, so 70 inches is shortest.

Step3: Calculate room length (Q4)

Total inches = $21 \times 7 = 147$ inches

Step4: Convert to feet (Q4)

Feet = $\frac{147}{12} = 12.25$, closest to 12 feet.

Answer:

1. 70 inches
2. 12 feet