Which of these sets of ordered pairs are functions? R={(0, 0), (1, 1), (2, 2)}
S={(0, 1), (1, 2), (2, 3)}
T={(0, 1), (0, 2), (0, 3)}
A. only set S
B. only sets R and S
C. only sets S and T
D. sets R, S, and T

Which verbal expression best describes the algebraic expression 3x ÷ 5? the quotient of three times some number and five the product of some number and five divided by three the quotient of three and some number times five the sum of three and some number divided by five