Question 12 Which of the following is an arithmetic sequence that could be modeled by an explicit formula expresed as a linear function?
A
1, 3, 6, 10, 15, 21, ...
B
- 1,0, 1, 0, 3, 0, ...
С
0, 3, 8, 15, 24, 35, ...
D
9, 4, -1, -6, - 11, - 16, ...

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

Asequence has its first term equal to 4, and each term of the sequence is obtained by adding 2 to the previous term. if f(n) represents the nth term of the sequence, which of the following recursive functions best defines this sequence? (1 point) f(1) = 2 and f(n) = f(n − 1) + 4; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2n; n > 1 f(1) = 2 and f(n) = f(n − 1) + 4n; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2; n > 1 i will award !

Why is it so easy to buy on impulse and overspend with a credit card? what could you do to counteract this tendency?