Solve for x. x minus 5.1 equals negative 12.4

Is the figure congruent? yes or no?

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9

The price of a dozen eggs was $1.63. suppose the price increases m dollars per dozen and then the price decreases $0.12 per dozen. which expression represents the current price of eggs after the two price changes?