Answer:
Price $0.75 per ounce of confetti
Explanation:
Given the statement: Yuki bought a pound of confetti for $12.
⇒
......[1]
Also, it is given that there are 16 ounces in 1 pound.
⇒ 16 ounces = 1 pound .....[2]
To calculate the price, in dollars per ounce of confetti.
From [1] and [2] we have;

then;
1 ounces =

Therefore, the price, in dollars per ounce of confetti is, $0.75 per ounce.