This year it snowed on five of the 12 days of christmas the snow amounts were 3 inches ,5 inches ,7 inches ,1 foot and 9 inches . what was the mean amount of snow for the 12 days ? round your answer to the nearest hundredth of an inch

In the 30-60-90 triangle below side s has a length of and side r has a length

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?