No solution / no x
D=b^2-4*a*c -> D=-4^2-4*1*21 -> D=-28 -> D<0, no solution
Since 7.6 is the cost per package, and x represents the number of packages, the expression 7.6x would represent the cost for the packages. Once we add the base fee, we get the equation:
y = 7.6x + 6.95
Hope this helps.
Answer:
Equation: 
when n = 4
Step-by-step explanation:
Given
Direct Variation: P ∝ n
When n = 15, P = 150
Required
Determine the equation
Her earnings if she sold 4 necklaces
P ∝ n
Convert variation to equation

When P = 150, n = 15 (Substitute these values in the given equation)

Divide both sides by 15


Substitute k = 10 in 

------- Equation that relates P and n
When she sold 4 necklaces, n = 4
Substitute n = 4 in the formula above


The answer is (4n-5)(n-3)
Kora uses the following ingredients to make 1 s'more.
Ingredient Amount
Graham crackers 2
Chocolate squares 8
Marshmallows 3
How many s'mores can Kora make if she has 20 graham crackers?
Kora uses the following ingredients to make 1 s'more.
Ingredient Amount
Graham crackers 2
Chocolate squares 8
Marshmallows 3
How many s'mores can Kora make if she has 20 graham crackers?
Kora uses the following ingredients to make 1 s'more.
Ingredient Amount
Graham crackers 2
Chocolate squares 8
Marshmallows 3
How many s'mores can Kora make if she has 20 graham crackers?
Kora uses the following ingredients to make 1 s'more.
Ingredient Amount
Graham crackers 2
Chocolate squares 8
Marshmallows 3
How many s'mores can Kora make if she has 20 graham crackers?vvKora uses the following ingredients to make 1 s'more.
Ingredient Amount
Graham crackers 2
Chocolate squares 8
Marshmallows 3
How many s'mores can Kora make if she has 20 graham crackers?Kora uses the following ingredients to make 1 s'more.
Ingredient Amount
Graham crackers 2
Chocolate squares 8
Marshmallows 3
How many s'mores can Kora make if she has 20 graham crackers?Kora uses the following ingredients to make 1 s'more.
Ingredient Amount
Graham crackers 2
Chocolate squares 8
Marshmallows 3
How many s'mores can Kora make if she has 20 graham crackers?Kora uses the following ingredients to make 1 s'more.
Ingredient Amount
Graham crackers 2
Chocolate squares 8
Marshmallows 3
How many s'mores can Kora make if she has 20 graham crackers?Kora uses the following ingredients to make 1 s'more.
Ingredient Amount
Graham crackers 2
Chocolate squares 8
Marshmallows 3
How many s'mores can Kora make if she has 20 graham crackers?Kora uses the following ingredients to make 1 s'more.
Ingredient Amount
Graham crackers 2
Chocolate squares 8
Marshmallows 3
How many s'mores can Kora make if she has 20 graham crackers?Kora uses the following ingredients to make 1 s'more.
Ingredient Amount
Graham crackers 2
Chocolate squares 8
Marshmallows 3
How many s'mores can Kora make if she has 20 graham crackers?