What is the difference?

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Remember that to subtract fractions we need to find the common denominator first.

To find it, the first thing we need to do is factor the denominator of the second term:

Since is a common factor in both denominators, the common denominator of both fractions is

Now, we can express both fraction with the common denominator and simplify:

We can conclude that the correct answer is the first choice.

it happens during combustion and impacts the environment because the plants and trees take in that and it can cause them to die.

the answer is 200

step-by-step explanation:

the way the question is worded, it seems to imply the $264 interest is simple interest, not compound interest.

the simple interest for 2 years is $264; the simple interest for 1 year is $132.

$132 interest on a $600 investment means an interest rate of (132/600)*100 = 22%.

the value of $200 at 22% interest compounded annually for three years is

200%281.22%29%5e3

the amount of interest is that value, minus the original $200.