Answer:
4,800 acres
Step-by-step explanation:
The equation is

where
is square miles and
is acres.
If Pam owns
square miles of farmland, then
.
We need to substitute this value into the given equation to determine the acres she has.
This implies that,

We multiply to get,

Therefore Pam has 4,800 acres.
The correct answer is A
That'd be 10^3 * 6*10^(-3), or just 6.
If you can't figure out how to do it, you can always use your answer choices, so for example, use choice a (21 degrees). Plug in 21 for x for both equations. So for the first equation that would be 7(21)-1= 146 and second equation 3(2)-9= 54. Then you would add the results, 146+54=200. In that case, choice 21 is wrong because both of these angles should equal to 180 since it is a supplementary angle. I hope that helped.
Change the fractions into decimals first.
If the decimal is for example 1.56565656... and so on, it is repeating. Because as you can see, the number 56 is repeating. If the decimal is for example 1.456 and there is no number afterwards, means that it is terminating.