Simplify (3n  – 2m)2  = ?                 a.  6n2  – 12mn  – 4m2      b.  9n2  + 12mn  + 4m2      c.  9n2  – 12mn  – 4m2      d.  9n2  – 12mn  + 4m2. the correct answer is d. 9n2 - 12mn + 4m2

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

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.