PLEASE HELP! would be much appreciated : )
1. For any real numbers x, let $ x be defined as the greatest integer less than or equal to x.
What is $ -1.5 + $ 4.5 ?
2. For any integers n, let ® n be defined as the sum of the distinct prime factors of n. For instance, ® 36=5, because 2 and 3 are the only prime factors of 36 and
What is the smallest value of w for which ® w=12 ?
3. For all real numbers a and b, let the expression a b be defined by the equation a b= 10a + b.
If 2.5 y = 50, what is the value of x?
Thank you very much