Answer:
Part A)
57.57 ; 5.757
Part B)
3% of 50 is 1.5. 
300% of 50 is 150. 
Together, they add to 151.5.
Explanation:
To find something "of" something, we can multiply the two values. 
A)
To find 101% of 57, we will multiply the two values. Hence: 

And 10% of that will be: 

B)
First, find 3% of 50: 

Next, we can find 300% of 50: 

Finally, add: 
