On a certain day the exchange rate was 60 u. s dollars 50 euro. how many us dollars were 70 euro worth that day? show that your awnser is reasonable

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The 40th parallel of north latitude runs across the united states through philadelphia, indianapolis, and denver. at this latitude, earth’s radius is about 3030 miles. the earth rotates with an angular velocity of latex: \frac{\pi}{12} π 12 radians (or 15°) per hour toward the east. if a jet flies due west with the same angular velocity relative to the ground at the equinox, the sun as viewed from the jet will stop in the sky. how fast in miles per hour would the jet have to travel west at the 40th parallel for this to happen? show your work and explain your process.

Apainting measures 2.4 feet from left to right. it's hung in the center of a rectangular wall measuring 20 feet from left to right. what is the distance between the right edge of the painting at the right edge of the wall?