Answer:

Step-by-step explanation:
Given expression is 
Let us perform the operations inside the parentheses first.






It’s pretty simple :)
All you have to do is take the width 1/6 times it by the length 1/2 and then times that by the height 1/3 and that gets you 1/36yd^2
cost of apples is based on weight (lbs) so this is the rate, the bag is a flat fee.
y = mx + b ⇒ Cost = rate(lbs) + bag ⇒ C = 1.29(a) + 0.25
Answer: #3: c(a) = 1.29a + 0.25
30 minutes because you would have to wait until one machine finishes