answer: idk man i can't understand you could you translate
i think the original price is 60
25% of 60 is $45.
factor 6mn ( greatest common factor) out of the 3 terms:
6mn(4m) + 6mn(5n) + 6mn(3)
factor 6mn out of the first 2 terms:
6mn(4m + 5n +3)