Well you can fill out the equation (-7-1, 7+6)
it'll give you
(-8,13)
I believe that is what you are asking for :)
Good Luck
Answer:
5.4332, 7.7, 7.03, and then 7.73
Cost of air cooler:-3,300
vat added:- 5%
so, price before vat was added:-5/100×3,300=AED165
Answer:
50
Step-by-step explanation:

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We make use of the special form for the difference of squares:
(a+b)(a-b) = a²-b²
F(x) = (√ x +6) +8
f(x-1) = (√ x-1 +6) -8
=(√x+5) -8