1) which of the following arithmetic sequences have a common difference of 2 1/2? a) -4,-1.5,1,3.5,6,8.5 b) 2 1/2, 4 1/2, 6 1/2, 8 1/2, 10 1/2 c) 1.5,3,4.5,6,7.5 d) -5, -3 1/2, -1 1/2, 2 2) in this arithmetic sequence, what is the common difference? 11, 8, 5, 2, 3 -3 5 -1

1foot = 12 inches; 1 yard = 3 feet

The ratio of wooden bats to metal bats in the baseball coach’s bag is 2 to 1. if there are 20 wooden bats, how many metal bats are in the bag?

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 california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.