Answer:
are u asking the absolute value ??? if so.. |7|
Step-by-step explanation:
First, you have to find the LCD. The LCD of 4 and 7 is 28, so you rewrite the fraction:
7/28
4/28
Then you add them.
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
Answer: the answer is 374.061
9 + 0.5n = 35
0.5n = 35 - 9
0.5n = 26
n = 26 : 0.5
<u><em>n = 52</em></u>
