HELP PLEASE DUE IN 3 MINUTES

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

Although changes result from business transactions, the equality of the fundamental bookkeeping equation must remain. t/f

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?