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?

Step-by-step explanation:

Let be the initial temperature and T be the current temperature.

Let h be the number of hours.

In 4 hours, the temperature has been going down 12 degrees.

In 1 hour, it has been going down 12/4 = 3 degrees.

In h hours, it has been going down 3h degrees.

So, the expressions that models this situation is:

x = 12

y = 15

step-by-step explanation:

1) c 2143.6 cm

2) c 113.0 m

3) a 33.5 ft

4)   d 2 cm

5) c 20 mm

6) 180 in

7) d 120 ft