When you are multiplying 2 numbers with exponents, you need to add the exponent. When you multiply an exponent with an exponent, you multiply them.
So,
(3^2 x 7^4) ^9
First multiply the base and add exponents = ( 21^6) ^9
= 21 ^6x9
21^54
The same rule applies for variables, just pretend there is an imaginary 1.
Answer:
More than 200 items must be produced to keep the average cost below $40 per item.
Step-by-step explanation:
Answer:
One third the difference between 3/4 and 2/3 is 
Step-by-step explanation:
One third the difference of A and B = 
Here, as given in the question:

Now, one third of the difference is :

Hence, one third the difference between 3/4 and 2/3 is 
Answer:
y=2x+1
Step-by-step explanation:
First you have to find the slope:
5-1/2 so 4/2 or 2
Then you write it in point-slope: (I used the point (0,1))
y-1=2x
Simplify than:
y=2x+1
I am almost positive that it is 360