400ft by 500ft is how many acrers?

How many kilometers can you travel on 1 liter of fuel with a V8? How do you calculate a perfect number? Can you convert 832 mg to grams? How can you make four triangles by using two lines? Why do the angels of triangle add up to 180 degrees? What is the slpoe in 4x plus 5y equals -10? What is 221.25 divided by 2.5? Which expression describes the total number of triangles in figure n? What real life situations are prime numbers used? What is a percent bar? What is the worlds tallest beaver dam? How do you find the density and the volume of a solid when the mass is 23.07g and the length is 2.70cm and the width is 2.70cm and the thickness is 2.70cm if the density and the volume is unknown? What can be used to find the total number of possible outcomes by using multiplication? What is a fraction for 0.125? What number goes into 348 equaly? What is 1 hour and 40 minutes as a decimal? Is patrizio buanne straight? Determine two positive numbers whose difference is 7 and whose product is 44? What is 1 3rd of 90? How many ways can you split a dollar?