Answer:
First find the area 72*63
A=4536
Then find the area 12*12
A=144
Then divide 4536/144
You would need 31.5 12 by 12in covers to decorate the rectangular region
As for the 6 by 6
You would need 126 album covers
As for the 9 by 9
You would need 51 covers
And as for the 15 by 15
You would need 20.6 covers
One vendor can serve 1500 customers per hour. in 4 hours he can serve 6000 customers & we have to serve 50000 fans so for this purpose we need 50000 / 6000 that is 8.••• vendors so in short we need 9 vendors at all so they can serve all the 50000 fans
hope this helps. mark this is brainliest answer
When the signs of the two numbers are the same, the answer will be positive. When the signs of the two numbers are different, the answer will be negative.
