How would i be able to get the right answer?

First you'd plug in -12 for T then you'd multiply -12 by 9/5, which in decimal form is 1.80, to get -21.6. Afterwards you'd add 32 to -21.6 and you'd get 10.4. So the correct answer should be B.

Since the derivative of the position with respect to time gives the change in position (in metres) divided by the change in time (in seconds), velocity is measured in metres per second (m/s).

Explanation: