64
There aren't any whole numbers that satisfy these conditions. The only numbers that multiply to 23 are 23 and 1.
4 + 5 = 9 x 16 = 144
16 and 15
16 and -3 are the numbers which gives -48 when multiplied and 13 when added
47
-96
The two numbers are -17.797959 and 1.797959 (approx).
29
288
-137
64
-22
2770
736
76
16