The temperature has been going down at a constant rate. in 4 hours it went down 12 degrees. which expression best shows the temperature change each hour? a. -12x-4 b. -12 divided by 4 c. 12x4 d. 12 divided by 4 i need asap, thx

3. is it possible to solve x (t ) for t, substitute it into y(t) to eliminate the parameter, t, and write it as a rectangular equation with x and y instead? why or why not? these are the equations i am working with: •x (t)=0.0411905(t^2)+(-0.164619)t+28.0114 and • y (t)=-0.024127(t^2)+(-0.591143)t+(-87.4403)