Answer:
These are all equivalent:
7 x 7 x 7 x 7
7 to the fourth power
7^4
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Step-by-step explanation:frgbhnjmk,l
-89.3
Step-by-step explanation:
3.3x10^7 x 5.2x10^8 3.3x5.2 x 10^7+8 17.16x10^15 = 1.716x10^16