Another middle schooler (Swimmer 2) swims 24 laps in 20 minutes, what is the unit rate?

2-digit numbers less than 91 which are 1 less than a multiple of 10

For how answer my question this will be the last question can you answer in math subject

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.