The ferris wheel at the landmark navy pier in chicago takes 7 minutes to make one full rotation. the height, h, in feet, above the ground of one of the six-person cars can be modeled by , where t is time, in minutes. using for one full rotation, this car's minimum height, in feet, is

The answer is 10 feet.  The ferris wheel at the landmark navy pier in chicago takes 7 minutes to make one full rotation. the height, h, in feet, above the ground of one of the six-person cars can be modeled by , where t is time, in minutes. using for one full rotation, this car's minimum height, in feet, is 10 feet. 
70(-1)+80
-70+80 = 10

When you go to ask a qustion there will be a picture of a paper clip looking thing and then it will pop up your files and you click on the imajes and then you up load it