Answer:
D.
Explanation:
She's trying to find the affect different shapes have on the distance the plane flies, not the affect different types of paper have on distance. If she were to use different paper for each plane she'd be testing two variables instead of one.
hope this helps :)
Answer:
the fourth one
Explanation:
since if it is a different way then it becomes something else
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When using the fifo method correctly the food stored in front is the food with the earliest use-by dates be stored.
FIFO is the first in, first out method of inventory valuation is a cost flow assumption that the first goods purchased are also the first goods sold. In most companies, this assumption closely matches the actual flow of goods, and therefore considered the most theoretically correct inventory valuation method.