Answer:
1) perimeter = sum of all the sides = 3y+9+2y+4+y+3+2y+4 = 8y+20
2) P = 4(5x-2) = 20x-8
39.99 x .25= 9.999 or 10$ off
39.99-10= 29.99$ in the end (Final Price)
maybe 28 is the answer...
Answer:
12 girls
Step-by-step explanation:
So the ratio of girls to boys is 4:3 and if there are 9 boys you multiply the number 3 by 3 to get 9 and do the same to the other side to get 12