Answer:

Step-by-step explanation:
Simplify the equation 

Since

and

we have

Answer: x=7.7, y=40
3/x = 15/38.5
38.5*3=115.5
115.5/15= 7.7
x=7.7
3/8 = 15/y
15*8=120
120/3= 40
y=40
orrrr you can just easily find the scale factor which is 5, multiply 8 by 5 and get 40. And 38.5/5 which is 7.7
Square root of 36y^3 = √36y^3
= 6√y3
=6∛y
<h3>
Answer:</h3>
8
<h2><u>
STEPS:</u></h2>
=57 times 4/57 times 2
=57/1 times 4/57 times 2
=4/2 times 2 (cancel common factor:57)
=4/1 times 2 (convert element to fraction 2= 2/1)
=4/1 times 2/1
Multiply the numbers (4 times 2)
=8/1 times 1 (Multiply the numbers 1 times 1)
Apply the fraction rule: a/1 =9
=8
The answer is 113.04. Volume of a sphere is 4/3*pi*r³so 4/3*3.14*3³=113.04