It is B i hope im right sorry if im wrong
Step-by-step explanation:
Let the breadth (b) of a rectangle be x
Then Length (L) = 2x
Now
Perimeter of the rectangle = 15 inches
Or, 2(L + b) = 15
2 ( 2x + x) = 15
2* 3x = 15
6x = 15
x = 15 / 6
x = 2.5 inch
Also Now
Length (L) = 2*2.5 = 5 inches
Breadth (b) = 2.5 inches
Hope it will help :)
Answer:

Step-by-step explanation:
use the formula 
so you would get
Those negatives becomes a positive and you get 4+8 = 12 and 0+7 = 7
you final answer would be 
Answer:
I think b
Step-by-step explanation:
because 2x + 2x = 4x and 5 + 3 = 8
Answer:
Step-by-step explanation:
S.I= PTR/100
=9000*(15/12)*2/100
=90*5/2
=450/2
=225