First apply 20% discount then applied $15 coupon combination gives better deal.
As given in the question,
Let final cost of the shoes be $100
First apply $15 coupon then applied 20% discount
100-15=$85
Now, 20% of 85= (20/100) × 85
=$17
Final price, 85 - 17 =$68
First apply 20% discount then applied $15 coupon
Now, 20% of 100= (20/100) × 100
=$20
100-20 = $80
Apply coupon $15
Final price, 80 - 15 =$65
Therefore, first apply 20% discount then applied $15 coupon combination gives better deal.
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4/7, because both the numerator and denominator can be divisible by 3.
Answer:
-6 + 4 = -2
Step-by-step explanation:
I know.
Answer:
The function is increasing for all real values of x where
x < –4.
Step-by-step explanation:
we have

This is a vertical parabola open downward (the leading coefficient is negative)
The vertex (h,k) represent a maximum
The roots of the function (or x-intercepts) are x=-6 and x=-2
The x-coordinate of the vertex is the midpoint of the roots
so

The y-coordinate of the vertex is
substitute the x-coordinate of the vertex in the quadratic equation



The vertex is the point (-4,4)
The function is increasing in the interval (-∞,-4)
The function is decreasing in the interval (-4,∞)