Maths question

[Notagoodtime]

Anyone able to help me answer this question please. Needs to be done by 7:30!!

The (9/16) to the power of (3/2) means square rooted then cubed.

The 3 to the power of -2 means (1/3 squared)

So answer is 3/4

Don't you multiply the numbers and add the indices?

9/16 x 3 to the power 3/2+ - 2

27/16 to the power -1/2