Yes it is because 18÷6 is 3 and 6×3=18
its a 100% increase since the amount completely doubled
hope this helps!!
The correct answer is: D) Subtracted like terms incorrectly
Step-by-step explanation:
Given

The terms 11.2y-7.4y need to be subtracted. But option b is to add them. We will add them and then solve the equation to see if its right.
So adding 11.2y-7.4y

Dividing both sides by 18.6

so by adding the terms instead of subtracting we get y=7.6.
this means that the error was adding 7.4y-11.2y instead of subtracting
The correct method will be:

Dividing both sides by 3.8

Hence,
The correct answer is: D) Subtracted like terms incorrectly
Keywords: Linear equation, Expression
Learn more about linear expressions at:
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Answer:
f(-8) = 64
Step-by-step explanation:
Since x =-8, we need to use x^2 since -8 <0
(-8)^2 = 64
When x = -8 f(-8) = 64