Answer:
y = x - 11
Step-by-step explanation:
First, turn the f(x) into a y:
y = x + 2 + 9
Now, switch the x and y.
x = y + 2 + 9
Add like terms.
2 + 9 = 11
x = y + 11
Now, solve for y. Subtract 11 on both sides.
x^3 = 64/343
x^3 = 4^3 / 7^3
x = ∛(4^3 / 7^3)
x = ∛4^3 / ∛7^3
x = 4/7
5 students
2/3 of 30 = 20 students
1/4 of 20 = 5 students
