1600÷2... 800
-------- = ----------
1654÷2.... 827
The term to term rule for this sequence is -2n + 10
The original fire department is 3 units wide and 4 units long.
The new fire deportment is also 3 units wide, so to be congruent, it needs to be 4 units long.
Point C would be (1,-5)
Point D would be (4,-5)
See attached picture.
There are no answer choices but if he drove 5 miles in 15 minutes and then traveled about at the same speed in 30 minutes which means he drove 5 more miles which makes it 10 so he is driving at 20mph
-hope it helps