Answer:
Step-by-step explanation:
This is an arithmetic sequence when each term is 19 higher than the previous. You can use the formula 19(n-1)+10 when n is the desired term you wish to find. So options A and C are wrong because when plugged into the formula we get another solution. D is wrong because it provides us with an incorrect formula for both the recursive and explicit versions.
The correct answer is B, when the 15th term is 276.
Simplify
5y+2w-5y+6w
Combine like terms
= 5y+2w+-5y+6
= ( 2w+6w)+ ( 5y+-5y)
= 8w
I hope that's help !