The mistake is that -7^2 is 49, not -49
Answer:
3² or 9
Step-by-step explanation:
Step 1: Add exponents
![\frac{3^{12}}{3^{10}}](https://tex.z-dn.net/?f=%5Cfrac%7B3%5E%7B12%7D%7D%7B3%5E%7B10%7D%7D)
Step 2: Subtract exponents
You should get 3² because of exponent rules. Remember when you multiply exponents you add the powers and when you divide exponents you subtract the powers.
Answer:
10 miles in 75 minutes
Step-by-step explanation: