Answer:
Step-by-step explanation:
1st one
Answer:
The relation between x and y is

Step-by-step explanation:
Given that,
The value of y varies directly as the square of x.


where r is constant of proportional.
Given that,
y= 27 and x=9
Plug y= 27 and x=9 in above relation





The relation between x and y is

Answer:
84
Step-by-step explanation:
80 + (80 * 5/100) = 84
simply take the 5% of 80 which is 4 and add it back to 80 which is 84
Surface currents are mostly caused by wind when it moves the surface of the ocean water.