Final answer:
The number that is roughly equivalent to 38 would be option (2) 38 exactly, but options (1) 36 and (3) 40 could be considered close estimates. Option (4) 42 is less likely to be considered a rough equivalent due to being further away.
Step-by-step explanation:
The question seems to be asking which number is roughly equivalent to 38. Among the options provided (1) 36, (2) 38, (3) 40, (4) 42, the number that is roughly 38 would be option (2) 38, as it is exactly equal to 38. In general, when approximating numbers, 'roughly' means an estimate that is close to the exact number without needing to be precise. Therefore, options (1) 36 and (3) 40 could also be considered rough estimates of 38. However, option (4) 42 is less likely to be considered a rough equivalent since it is four units away, making it a less accurate estimate compared to options (1) and (3).