Pls help ! Will give brainliest

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2

Find the area of the surface obtained by rotating the curve z=4e^2y from y = 0 to y =1 about the y-axis. the area is square units

The hockey team has been great! in 2008, they won 20% more games than in 2007 in 2009 they won 50% more games than in 2008 what was their overall percentage increase from 2007 through2008?