When Ms. Sugar turned on her oven, the temperature inside was 70 degrees Fahrenheit. The temperature began to rise at a rate of 20 degrees every minute. How long did it take for the oven to reach 350 degrees Fahrenheit?
I am pretty sure you would have to divide 350 / 20 to get 17.5.
It takes 17.5 Minutes the get the oven to reach 350 Degrees F