What is 7 to third power in standered form?
You're joking, right?
7 to the third power is 7 cubed, or 7 x 7 x 7 = 343.
Here's some interesting facts about 343 from Wikipedia:
It is z in a triplet (x,y,z) such that x5 + y2 = z3. The number
of New York City Firefighters who died September 11, 2001. The
number of the monitor of Installation 04 (343 Guilty Spark) in the
Halo series of games. The panel number of the Russian T-80 tank
driven by James Bond in the movie GoldenEye.