There is a bag with only red marbles and blue marbles. The probability of randomly choosing a red marble is 2/9. There are 63 marbles in total in
the bag and each is equally likely to be chosen. Work out how many red
marbles there must be.​

The gilbert's are designing a rectangular patio. the patio has an area of 24 square feet. the width of the patio is 3/4 it's length. what is the length of the patio

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

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.