Answer:
I look it up in go.o.gle and found this answer
1e-47
1. 35x + 0.15y
=3500x + 15y [multiplying the equation by 100]
= 700x + 3y [dividing the equation by 5]
2. Let x be an even integer
x + (x+2) + (x+2+2)
x+x+2+x+4
3x+6
3. 1/5*(r+7) - 9s
(r+7)/5 - 9s
4. x=cows
y= goats + sheep
x= (y+140)/2
There are three friends and 4 cups. Each friend can have a whole cup each and need to split the last cup 3 ways (1/3)
Each friend would get 1 cup and 1/3 of a cup
(I hope I’m right~)