Moving crates with individual weights of 7,432 lbs, 12,550 lbs, 6,123 lbs, and 9,634 lbs are being loaded onto a flatbed truck. The driver needs to estimate the total weight of the shipping containers to the nearest thousand pounds in order to calculate the freight tolls along his route. Since he doesn't have a calculator handy, he will need to round each container's weight to the nearest thousand before totaling the weights. What will his total estimated weight be?

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?