Simplify both brackets, this equals 22 + 10x - 17 + 5x
Simplify further and you get 15x + 5
If rounded to the nearest 10 is 530, then this number must be between 525 and 534. The only one which digits sum up to 11 is 533.
Answer:
A) f(n) = 12 + 2(n-1)
Step-by-step explanation:
Arithmetic Sequence Formula:
a(n) = a(1) + (n-1)d
d = 2
a(1) = 12
a(n) = 12 + 2(n-1)
