Answer:
It is in standard form
Step-by-step explanation:
That is standard form. Standard form is Ax+By=C. 3/5 is A, 1/4 is B, and -1/2 is half. Do you mean Ax+By+C=0? If so then its 3/5x+1/4y-1/2=0
You would take 12 X 20, and that equals 240. $120 is your answer.
So 18 chairs altogether.
Red : Brown
2 : 4
2+4= 6
18 / 6 = 3
3 x 2 = 6 3 x 4 = 12
6 red chairs and 12 brown chairs. To make sure it's right add them 12+6=18
Answer: 
Step-by-step explanation:






50+20=70
Have a great day:)