Median Q1 Q3 IQR 6 12 8 15 9 7

Which expression is equivalent to? assume x > 0 and y > 0.

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).

Find the maximum value of p= 4x + 5y subject to the following constraints :