Answer:
(c - 2d) (3a - 2b)
Step-by-step explanation:
if you need the steps just ask me in the comments and I’ll type them lol

Out of 320 student, you should expect about 25% of them to score above 284, or about 80 students.
Hello!

Use the Pythagorean Theorem to solve for the hypotenuse:
a² + b² = c²
Plug in the given values:
12² + 4² = c²
144 + 16 = c²
160 = c²
Take the square root of both sides:
c = √160
c ≈ 12.65.