Translate the following argument into symbolic form. Then determine whether the argument is valid or invalid. If you are at work then you are awake. If you are awake then you will not eat dinner. Therefore, if you are at work then you will eat dinner.
I know its invalid but need the symbolic formulas for it

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?