If 5.6 and 2.1 are the measurements then:
you multiply 5.6 and 2.1 to get the area.
Area=11.76squared
You add 5.6+5.6+2.1+2.1 to get the perimeter.
Perimeter=15.4
It had to be B
because 6 is subtracted by the number n and the only one that has n-6/ 6-n is B
Answer: look at the picture
Step-by-step explanation: Hope this help :D
Answer:
3x3-x2-5x+3
Step-by-step explanation:
Open brackets