Use the distributive property to write an equivalent expression for
8(y-7)

8y-56

Step-by-step explanation:8(y-7)= (8*y)+(8*(-7)) so 8y+(-56) or 8y-56

X-chickens
y-ducks
Last month: 50x+30y=$550
This month: 44x+36y=$532
50x+30y=550;/10⇒5x+3y=55⇒5x=55-3y⇒x=11-3/5y
44x+36y=532;

x=11-3/5y
44*(11-3/5y)+36y=532⇒484+9.6y=532⇒9.6y=48

x=11-3/5y
9.6y=48⇒y=48/9.6⇒y=5
x=11-(3/5)*5⇒x=8

Cost of chicken is 8$ and cost of duck is 5$.