-5x + 2y = -51 -x -y = -6 Given the equations what is the value of xy? PLZ HELP WILL MARK BRAINLIEST AND GIVE POINTSSS

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.

Arectangle plot measure 20ft. by 30ft. a 3-ft.-wide sidewalk surrounds it.find the area of the sidewalk.

Use the squared identities to simplify sin^2x cos^2x