Help please I need this like right now !!

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters .

Arectangle has a width of 9 units and length of 40 units. what is the length of a diognal. a. 31 unitsb. 39 unitsc. 41 units d. 49 units

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u