How to write a real world situation that could be modeled by the equation 100-6x=160-10x

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).

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square