3x(12x – 4) – 9x(4x – 3) = 30

x is 2

Step-by-step explanation:

• First open brackets [ by distributive property ]

Step-by-step explanation:

Expand:

Apply distributive law:

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Expand:

Apply distributive law:

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Combine like terms:

Divide both sides by 15:

OAmalOHopeO

true !

step-by-step explanation:

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation: