Answer:
6^5
Step-by-step explanation:


where
is the Jacobian matrix for the transformation,

We have

so that the integral is

Answer:
84
Step-by-step explanation:
Since there will be 28 people, and each of them will drink 3 glasses, you just multiply the number of people times the number of glasses they will drink each, so 28*3. The result is 84.
I hope this helped! :D
Answer:
The required ratio is 9 : 61
Step-by-step explanation:
Given,
$72 for 488 photos,
That is, the price of 488 photos = 72 dollars,
So, the ratio of price of photos and number of photos = 
∵ HCF(72, 488) = 8,
Thus, the ratio of price of photos and number of photos = 
= 
Y=13
(when you have fractions like the one in this problem, you get rid of them by multiplying both sides by the denominator.)