Answer:
b=9
Step-by-step explanation:
move the 4b over to the other side by adding it to both sides


You just have to do the opposite of what Corey did.
So (18 ÷3 +17) ×2 -25
The answer is 21
Hope I can help you, brainliest answer? :)
A. -f(1)=1,f(2)=2,f(n)=2f(n-1)f(n-2);n>2
Answer:
Step-by-step explanation:
the formula for an arithmetic sequence is
a, a+d,a+3d,a+3d etc, where d is the common difference
we have the terms -6, 13,23
first term is -6
-6+19=13
however, 13+10=23
this is not an arithmetic sequence