eight sextillion, seven hundred and eighteen quintillion, sixteen quadrillion, one hundred and seventy-seven trillion
mn - 7m +5n - 9mn + 2n
Group like terms
= 1mn -9mn +5n + 2n -7m
= -8mn +7n -7m
brushes = $14
hardboards = $14
total = $28
= $104 / 28
= 3 remainder 20
= $20 left
+132 