There are 5 red marbles, 15 blue marbles, and 5 green marbles in a bag. you reach in and randomly draw a marble, replace it, and draw another marble. what is the probability that the first will be red and the second will be blue

The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?

Solve 3x-18=2y and 5x-6y=6 by elimination show work

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.