Seth has 4 plaid shirts and 5 solid-colored shirts hanging together in a closet. in his haste to get ready for work. he randomly grabs 1 of these 9 shirts. what is theprobability that the shirt seth grabs is plaid? i have terible problems with ration, i need : (

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?