Answer:
3x-4y-9
Step-by-step explanation:
Combine like terms
Answer:
x= -1/5
Let me know if you need an explanation :)
Answer:
Step-by-step explanation:
10 boys..............................15 girls
20 boys...............................30 girls
we just multiply by 2
Answer:
7/10
Step-by-step explanation:
Try 7/10
(7/10)^2=49/100