HELP!! Simplify: [3(2a)3/2]^2

a) 24a^3
b) 72a^3
c) 34 4√2a^9
d) 216a^3

See image below as well.

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?