Simplify: −2x + (9x − 4)
please show your work.

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year