Final answer:
The question asked to complete sentences involving rates for mile per hour and cost per item. The correct completions are 50 miles per 2 hours and 0.75 for each apple, making the answer (a) 50; each.
Step-by-step explanation:
The student's question involves writing rates and finding the correct pair of numbers and descriptors to complete the sentences about common ways to express rates. Let's tackle each part of the question:
- For the first sentence: "100 miles ______________ 2 hours," we're looking for the rate of speed. To find miles per hour, you divide the number of miles by the number of hours. So, 100 miles divided by 2 hours is 50 miles per hour.
- For the second sentence: "0.75 for ___________ apple," this indicates the rate of cost per item. Since the statement is about a single item, we say "each apple."
Therefore, the answers that complete the sentences are:
100 miles 50 2 hours, 0.75 for each apple. So these are some common ways that we could write rates.
The correct choice from the given options is (a) 50; each.