Answer quickly for 5 star and brainliest.
1. what could you multiply the second (purple) equation by to make the y-values additive inverses? (see photo 1)
2. what could you multiply the top equation by to be able to add the equations and eliminate the x-values in this system? (see photo 2)

Find an equation of the line perpendicular to the graph.

Ateacher has $80 to buy workbooks. each work book cost $3. if she buys as many workbooks as possible, how much money does she have leftover? a) $2 b) $4 c) $6 d) $8

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.