A) parallel, same slope
Y = 3x + b
9 = 3(5) + b
9 = 15 + b, b = -6
Equation: y = 3x - 6x
B) y = -7x + b
11 = -7 + b, b = 18
Y = -7x + 18
c) y = 9x + b
-16 = 18 + b, b = -34
d) y = -x + b
9 = 2 + b, b = 7
Y = -x + 7
Try the rest on your own
Answer:

a) $4110
Step-by-step explanation:
Let x represent number of rain coats and C(x) represent total cost to produce new line of rain coats.
We have been given that the fixed costs of $570 to set up for production, and variable costs of $30 per jacket.
The cost of x jackets would be
.
The total cost of x jackets would be variable cost of x jackets plus fixed costs that is $570.
Therefore, the total cost of producing x rain coats would be
.
To find the total cost of producing 118 rain coats, we will substitute
in the above equation as:



Therefore, the total cost of producing 118 rain coats is $4110 and option 'a' is the correct choice.
Answer:
300
Step-by-step explanation:
20*30=600
600/2=300
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3 out of 12 areas are filled. so that is 25% and 0.25 in decimal form. <span />