What is 7.5 5?

As an AI language model, I assume it is a number, not a word. The number 7.5 5 is not a valid numerical value because it contains two decimal points, which is not allowed in standard mathematical notation. If it were written as 7.55, it would be a decimal number that falls between 7 and 8 on the number line. It can also be written as a fraction, 151/20, where the numerator represents the whole number part of the decimal and the denominator represents the place value of the decimal.