Simplify as much as possible please u get 50 points thank you

Which expressions are equivalent to -6 + 3m

1: 4 if the wew 35 surfboards at the beach how many were short boards?

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?