Which ratio is equivalent to the unit rate 30 miles 1 gallon ? how was the unit rate transformed into the equivalent ratio?

Is the figure congruent? yes or no?

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents