Final answer:
The calculation of subtracting 7 from 3 and 2/5 results in -3 and 3/5 or -3.6, which does not match any of the provided options.
Step-by-step explanation:
The question seems to contain information that is not directly related to the problem that needs solving, which is calculating the result of subtracting 7 from 3 and 2/5. First, let's convert 3 and 2/5 into an improper fraction. 3 and 2/5 can be converted by multiplying the whole number 3 by the denominator 5, giving us 15, and then adding the numerator 2, resulting in 17/5. Now, to subtract 7, or 35/5 (since 7 is the same as 35/5), from 17/5, we perform the following calculation:
17/5 - 35/5 = (17 - 35) / 5 = -18/5
-18/5 can be simplified to -3 and 3/5. Converting 3/5 into decimals gives us 0.6, thus our final answer is -3 and 3/5 or -3.6 in decimal form, neither of which match the choices given.