Mary has 18 marbles. if tim has 5 times as many marbles as mary, which number sentence shows how many marbles tim has? a. 18 × 18 = 324 b. 18 + 5 = 23 c. 5 × 5 = 25 d. 5 × 18 = 90

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 !