Answer:
The answer I got is 3. I attached above my solutions. I hope that helps :))
The perimeter of triangle ABC is 84.
7 * 4 * 12 = 336sq cm
Step-by-step explanation:
Hoped this helped
Answer:D
you plug 4 in for x
f(4)=4^2+2(4)-3
=16+8-3
=24-3
=21
