How can I find the perimeter of a square made of 3 tangram pieces; 2 small triangles, 1 medium triangle given a square tangram piece's side length is one unit?

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip

The total number of dental clinics total for the last 12 months was recorded

Siri can type 90 words in 40 minutes about how many words would you expect her to type in 10 minutes at this rate