Answer:
...
Step-by-step explanation:
....
Answer:
x^8y^8
Step-by-step explanation:
(x^4y^3+1)^2
(x^4y^4)^2
Expand the bracket by multiplying the exponents by 2
x^8y^8
Answer:

Step-by-step explanation:
2/3= 0.66666
Dividing the given value to obtain the decimal value gives:

The last number is 7 which is greater than 5 this will increment the previous number by 1.
As,the previous values are also '6', so this step will continue till three significant figures.

So the value rounded up to 3 significant is 
I think the answer is 2/3
Answer:
113.75$
Step-by-step explanation:
I. When a square yard = 9.10
so 1 * 9.1 = 9.1
if 12.5 square yard
then 12.5 * 9.1 = 113.75$