Hey there!
Assuming you meant:
5^3
IF SO, LETS SOLVE FOR IT!
5^3
= 5 * 5 * 5
= 25 * 5
= 25 + 25 + 25 + 25 + 25
= 50 + 50 + 25
= 100 + 25
= 125
Therefore, your answer is mostly likely:
125
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)