A ceartain trigangle has to 45 degree angles . what type of triangle is it

Solve for x i'll try to attach the files bc it's not letting me for some reason

An equation representing lyle’s hedge-trimming business is a = 12n - 300 where a is the amount of profit or loss in dollars and n is the number of hedges trimmed. how would the graph of lyle’s business change if the equation a = 10n - 300 represented his business? the graph would be flatter. the graph would be steeper. the graph would start closer to the origin. the graph would start lower on the y-axis.

Which of the following contains a variable?