How to solve this equation? x^5-4x^3+x-1=0

Need this asap if anyone can i would be very grateful. if you could show workings that would really

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).

Select the number of ways in which a line and a circle can intersect