The area (a) of a circle is a function of its radius (r) and is given by the function a = f(r) = πr2. what is the domain of this function? a. all positive real numbers b. all real numbers c. all positive real numbers including 0 d. all real numbers excluding fractions

Asif spent $745.10 on 13 new file cabinets for his office. small file cabinets cost $43.50 and large file cabinets cost $65.95. write and solve a system of equations to find the number of small cabinets and large cabinets he purchased. determine if each statement is true or false. 1. he purchased 5 small cabinets. true or false 2. he purchased 7 large cabinets. true or false 3. he spent $527.60 on large cabinets. true or false