Answer:
13ft
Step-by-step explanation:
12in = 1ft the difference in height is 13ft
Least 10 digit whole number = 1,111,111,111
Answer: Option 'a' is correct.
Step-by-step explanation:
Since we have given that
Dimensions of the room is given by
15 ft by 25 ft
Let x be the width around the rug.
So, new length = 15-2x
new breadth = 25-2x
Since Area of the rug = 264 sq. ft
So, it becomes,

Hence, Option 'a' is correct.
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<span>A direct variation means proportionality. Triangular numbers are quadratic in n. T(n)=n(n+1)/2. So no.</span>