Step-by-step explanation:
13.5 is the difference of the length of the roads
7% in decimal form is 0.07
It's suppose to be -18 so I guess no real number....
The sequence is arithmetic since the common difference that is equal
d=11-15=7-11=-4
a(n) = a1 +(n-1)d
a1=15
=
a(n) = 15+(n-1)-4
Answer:
the answer is B.
Step-by-step explanation:
It makes the problem solve smoother.
