Plz i need quick ! the perimeter of a rectangular wooden deck is 90 feet. the deck's lenght, l, is 5 feet less than 4 times its width, w. which system of linrar equations can be used to determine the dimensions, in feet, of the wooden deck?

Without graphing the linear functions, find the coordinates of the point of intersection of their graphs: y=3x−11 and y=4

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).

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!