Answer:
-4
Step-by-step explanation:
If we set up the equation with the known info, we get y=3x+b
We can then use the ordered pair to plug in, so 8=12+b
Now, simply solve for B, and you get -4
Nikkis charges are 20,40,50,80. Dave’s charges are 25 and 37.5.
Thats eaasyy, you simply have to convert it!!! hope i helped
<span>6x^2 + 12x – 7 = 0
Use the quadratic formula:


x = 0.47 and x = -2.47
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