1. A farmer needs to enclose a section of land in the shape of a parallelogram by using one side of a barn for one side. The barn and the side opposite of the barn will both be 9 feet long. One of the other sides will be 7 feet long. What is the length of the last side? (Circle the correct answer.) A. 2 feet B. 16 feet C. 9 feet D. 7 feet​

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

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.

Write the equation of the circle centered at (10,-2) with radius 2.