plz help only three questions and don't answer for point kinda rude

Abag contains 5 red marbles , 6 blue marbles and 4 green marbles. susie selects a marble and returns it to the bag before selecting another marble. if susie selects a red marble 6 out of 20 times, what is the experimental probability that the next marble she selects will be a red marble ?

X-y=4 x+y=8 the x-coordnate of the solution to the system shows

Select the correct answer from each drop-down menu. e consider the equation below. + 8) = 14 + 6r the equation was solved using the following steps. -16 step 2: step 3: - 16 = 14 + 6 - 16 = 14 –16 r = 30 step 4: step 5: complete the statements below with the process used to achieve steps 1-4. step 1: step 2: step 3: step 4: -2 to 5x and 8. 6x 16. -16.