Afactory uses 15 pounds of steel for every 18 pounds of copper. how much copper will the factory use for 2,700 of steel. a.2,250lbs b.2,400lbs c.3,240lbs d.3,700lbs?

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

Which representation has a constant of variation of -2.5

Are triangles the congruent? write the congruency statement.what is the congruency that proves they are congruent? what is the perimeter of ∆pqr?