Solve for x
PLZ HELP =/

Asquare parking lot has 6,400 square meters what is the length in meters

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

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).