Answer:
The answer is C
Step-by-step explanation:
Answeration:
they are both false
a=10
d=-1/2
nth term=a+(n-1)d
10+(9-1)(-1/2)
10-4 =6
-10
solve algebraically.
-2=(2+x)/4
*4 *4
-8=2+x
-2 -2
-10=x