Answer:
The length of the rectangle is 15 cm.
Step-by-step explanation:
breadth(b)=?
length(l)= 3+2b
perimeter(P)= 42 cm
Now,
P = 2 ( l+b )
or, 42= 2 ( 3+2b+b)
or, 42 = 2 ( 3+3b)
or, 
= 3+3b
or, 21 = 3+3b
or, 21-3 =3b
or, 18 = 3b
or, 
= b
or, 6 = b
Here, Breadth(b)= 6 cm
Length (l) = 3 + 2*6
= 3 + 12
=15 cm
the relationship between 5.34 x 10^5 and 5.34 x 10^-2
5.34 * 10^-2 , for exponent -2 we move the decimal point 2 places to the left
Now we compare 534000 and 0.0534
0.0534 is 10,000,000 times less than 534000
Or we can say 534000 is 10,000,000 times greater than 0.0534
is 10,000,000 times greater than 
Answer: x=100
Step-by-step explanation:
In parallelograms the opposite angles are equal. As the bottom left angle is 80° the opposite angle (top right), is also 80°. All 4 angles in a quadrilateral must add up to 360. Because you know 2 angles added together are 160° the other two angles must equal 200°. As opposite angles are equal you know 2x=200, divide by 2 x=100
Answer:
for the first one- 1/8 0.25= decimal and percent=12.5%
Second 8 boxes and shade in 6 0.75=decimal 75%
Step-by-step explanation:
