Reported or indirect speech is usually used to talk about the past, so we normally change the tense of the words spoken. We use reporting verbs like 'say', 'tell', 'ask', and we may use the word 'that' to introduce the reported words. Inverted commas are not used.
Distance divided by time is <u>speed</u><u>.</u>
Explanation:
The distance you travel in a certain amount of time would be your speed.
