Which equation represents a line with a slope of 6 and a y-intercept of -3?

a. -x+ 6y = 3
b. 6x - y = 3
c. x-6y = 3
d. 6x +y=-3

Julia chooses a card at random from her set of cards. what is the probability that the card is labeled cat or hamster?

I’m stuck on this equation, anyone got the answer?

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.