A small radio transmitter broadcasts in a 50 mile radius. If you drive along a straight line from a city 60 miles north of the transmitter to a second city 70 miles east of the transmitter, during how much of the drive will you pick up signal from the transmitter.

It took a salmon 45 seconds to swim upstream to a certain spot. The salmon then turned around to swim with the current and arrived at its starting place in 17 seconds. If the current in that part of the stream is 0.43 meters per second, what was the speed of the salmon?

At 9:00 am Katrina starts down an exercise path and walks at a rate of 3 mph. At 9:30 A.M Carla leaves from the same place and begins chasing Katrina, catching her at 10:00 a.m. find Carla's jogging rate.

Here’s a look at a map of the east side of Dubuque, Iowa. It shows a driving path from a casino on the river to a golf course on the other side. According to the maps app on my phone, the driving distance is 3.0 miles. We’re most interested in the graphic at the bottom left, which indicates that 1 inch on the map (measure if you don’t believe me) corresponds to 2,000 feet in real life.   If a 50-foot boat were on the river, how big would it appear on the photo? Round to three decimal places.