How can you find the answer to 5 x 1/3 by fining the answer to 5 x 3

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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.

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?