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To find the number of gallons needed to paint the wall, we need to calculate the total area of the wall in square meters and then convert it to square feet.

The wall is 12 meters tall and 120 meters long, so its total area is:

Area = height × length
= 12 meters × 120 meters
= 1440 square meters

To convert this area to square feet, we can use the conversion factor that 1 square meter is approximately equal to 10.764 square feet:  prepaidgiftbalance

Area (in square feet) = Area (in square meters) × 10.764
= 1440 square meters × 10.764
= 15,520.16 square feet

Now, we can calculate the number of gallons needed. We know that 1 gallon covers 150 square feet:

Number of gallons = Total area (in square feet) ÷ Coverage per gallon
= 15,520.16 square feet ÷ 150 square feet
≈ 103.47

Since we can't buy a fraction of a gallon, we need to round up to the nearest whole number. Therefore, you should buy at least 104 gallons of paint to have enough to cover the entire wall. 

Jun 14, 2023