Answer:
1
Step-by-step explanation:
take the -2 and divide it by 2
that gives you -1
then square it
now its positive 1
formula is 
where b is the term next to the x
30% of 42 is 12.6$.
42-12.6 = 29.4$ is the price of the pair with discount applied.
Tax 7%
29.4 * 7% = 2.06
29.4$ + 2.06$ = 31.46 $ final price with discount and tax applied.
First change the mixed fraction into a improper fraction
8 5/6= 53
53/6 is your improper fraction
then flip it (reciprocal)
6/53 is your answer
hope this helps
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