Answer: 21
Step-by-step explanation:
since 19 is the breadth and the perimeter is 80m, so 19*2=38 and 80-38= 42 so 42/2=21. The answer is 21
It’s the quadratic formula because it’s give directly the zeros of a function
Answer:

Step-by-step explanation:

Answer:
2 mails everday
Step-by-step explanation:
Graph it to a then to b then to c and you will have your answer sikew