Answer:
180º
Step-by-step explanation:
All the interior angles add up to 180º degrees.
Answer:

Step-by-step explanation:


which can also be written as:

4y:5y would be the simplest form
Answer:
4x^3 - 15x^2 - 10x + 24
Step-by-step explanation:
FOIL (x-4)(4x^2+x-6)
= x(4x^2+x-6) -4(4x^2+x-6)
= 4x^3+x^2-6x-16x^2-4x+24
=4x^3-15x^2-10x+24