Answer:
Hey there!
(8^2)^-4=8^2(-4), or 8^-8
8^-8 can be expressed as the third option.
Hope this helps :)
11. 8/7
14. 13/10
17. 11/14
Functions can only have 1 value of 'x'.
Option A is not a function because it has two -5's
Option B is not a function because it has two -2's.
Option C is a function.
Option D is not a function because it has two 6's.
0.0239 x 28 = .6692 (this is the amount of tax paid)
shoes + tax = total
$28 + 0.6692 = $28.6692 which rounds to $28.67 (money is always rounded to the hundredths place)