Write an equation that represents the line (-2,4) and (-7,-3)

Why do interests rates on loans to be lower in a weak economy than in a strong one

How do you use the elimination method for this question? explain, because i really want to understand!

Angela is buying a dress that is on sale for 20% off. if the original price of the dress is $40.00, how much money is angela saving on the dress? a. $0.80 b. $3.20 c. $32.00 d. $8.00