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Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

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).

Which value would be a solution for x in the inequality 47-4x< 7