At a museum 100 posters are displayed in each of 4 rooms altogether how many posters are displayed

400 posters

Step-by-step explanation: There are 4 rooms and 100 posters in each room.

so we multiply 4 and 100 which equals 400

u dumb boi

step-by-step explanation:

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square