The expression we have is:

And we are given some values for x and y:

The first step will be to substitute the given values into the expression:

The next step is to solve 4^2 which is equal to 16:

And then we solve the multiplications, 2(2)(4) is equal to 16 and (2)(16) is equal to 32:

Solving this final multiplication we get the result:

Answer: 512
 
        
             
        
        
        
Ned thought he needed 2/3 cups of flour for his donut recipe, but in order for him to get the correct amount, he needs to divide by 3/4.
        
             
        
        
        
Answer:
268.08
rounded number- 268
find the number in the whole number place, 8, and look one place to the right for the rounding digit on the right side of the decimal point, 0. round up if this number is greater than or equal to 5, and round down if it is less than 5. 
formula for sphere volume- 4/3 (pie- 3.14) r^2
 
        
             
        
        
        
The answer is two, please mark me as brainliest lol