Question

evaluate. write
$7^{-3}=1/\square$

Explanation:

Step1: Apply negative exponent rule

Recall that $a^{-n} = \frac{1}{a^n}$. For $7^{-3}$, this gives:
$7^{-3} = \frac{1}{7^3}$

Step2: Calculate the denominator

Compute $7^3$:
$7^3 = 7 \times 7 \times 7 = 343$

Answer:

343