Natural numbers are integers. A. always
B. sometimes
C. never

Negative numbers are whole numbers.
A. always
B. sometimes
C. never

Square root are rational numbers.
A. always
B. sometimes
C. never

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 !

Which of the following circles have their centers on the x-axis? check all that apply.

Could someone me with this question i’ve been stuck on it for 20 minutes