Answer:
20
Step-by-step explanation:
Use the equation 
Where b2 is a, b1 is b and h is h
Answer:
The answer is B: (1,2)
Step-by-step explanation:
(solved using elimination method)
-2x+y=0
y=x+1
-x+y=1
-2x+y=0
x+y=-1
-x=-1
x=1
-1+y=1
y=2
(x,y)=(1,2)
0.05(0.85y)=5%(of the onsale dvd)
and a is just the on sale dvd (85%)
Answer: 4 cookies per bag
Step-by-step explanation