i Don't know the answer is true or not..but i try my best
Answer:
The index of a number says how many times to use the number in a multiplication. It is written as a small number to the right and above the base number. In this example: 82 = 8 × 8 = 64. The plural of index is indices. (Other names for index are exponent or power.)
Step-by-step explanation:
I think 4 divided by 8/9 - 1/2 = 4