But what 9?? Tell me which 9 so I can answer.
Answer:
1) The 15%-off coupon is $3.
2) The cost of the meal after the discount is $17.
3) The final cost of the meal with taxes is $18.19.
Step:
1) To find the discount, try to find the amount of 1%, (20÷100 x 15 = 3)
2) To find the cost of the meal after discount (20-3 = 17)
3) To find the final cost, try find the taxes amount (17÷100 x 7 + 17 = 18.19)
Answer:
linear binomial
Step-by-step explanation:
Where -7 is the coefficient of the first term and 10 is the constant
Expand
f(x)=-x²-8x-12
take derivitive
f'(x)=-2x-8
zero at x=-4
in x<-4, the derivitive is positive so the function is increasing
in x>-4, the derivitive is negative so the function is decreasing
increasing in (-infinity,-4)
decreasing in (-4,infinity)
first option
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