Please help me‼️ Question: select all the equations that can be represented by a straight line when graphed on the coordinate plane

Which of the following are accepted without proof in a logical system? check all that apply.

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

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?