an office building has 23 offices. the floor area of each office is 305 square feet. which shows the equation you can use to find the floor area, n, of all the offices and the value of n?
A. 23+305=n, n=810 square feet
B. 23x305=n, n=1405 square feet
C.23x305=n, n=1425 square feet
D.23x305=n, n =7015 square feet
