Select the number line that shows that two opposite numbers have a sum of 0. 2 O A. -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 7 ОВ. -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 3 O C. + -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 1 O D. -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12​

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.