Answer:
haha
Step-by-step explanation:
Answer:
of which class is it ?
Step-by-step explanation:
???????.................
What you are asking is

we need to make the fractions improper now,

now we need common denominators:

we get

OR
Answer:
It is the first one, The total drop in temperature, −20∘F, divided by 4 hours equals −5∘F per hour. The temperature dropped 5∘F each hour.
Step-by-step explanation:
The new slope is 3, but the y-intercept doesn't change.