Answer:
Slope: 
Y-int: 9
Step-by-step explanation:

-6x -6x
-2y = -6x + 18
----- ------------
-2 -2
y = 3x + 9
The answer is 6. You can just divide 2,370 by 395. That will give you 6.
Answer:
$44.94
Step-by-step explanation:
400+100+100 = 600
22.40 + 10 +10 = 42.40
(22.40 for the first 400 and 10 for each additional 100)
If tax is 6%, you can multiply the whole thing (42.40) by 1.06 to get the total amount of 44.94.
Why 1.06? If you think about it, tax is 6%. 6% is the same as 0.06. You pay 100% for the products, so with tax, it's the equivalent of 106%, or 1.06.
Speed = Distance ÷ Time
Distance = 2797.2
Time = 0.15
2797.2 / 0.15 = 18,648
Speed = 18,648
Answer:
b. x+1..........................