Answer:
x=9.717
y=18.275
Step-by-step explanation:
First solve for x and then use x to help you solve for y
<span>y is a function of x in y = 3x^3</span>
It would be 20, because 5 plus 4 is 9 and you can multiply 9 by 2 to get 18, 9 by 3 to get 27, and 9 by 4 to get 36, but you can't multiply anything by 9 to get to 20.