(1/4ab)^-2
Remove negative exponent by rewritten the equation as (4ab)^2
AUse Product rule to get:
4^2a^2b^2
Now raise 4 to the second power to get:
16a^2b^2
The last answer is correct.
The package with the most low cost is 7.
0.17.
Look at the numbers they have the same. They both start with 0.01...but the next number in the first one is 7, which is greater than 6.
=9 1/3 * 3 miles
=27 3/3
=28 minutes