Johnny has a box filled with 10 black marbles and 5 purple marbles. What are the odd he pulls two purple marbles in a row without replacemnet

Worth 15 points handsome jack is buying a pony made of diamonds. the price of the pony is p dollars, and jack also has to pay a 25% diamond pony tax. which of the following expressions could represent how much jack pays in total for the pony? a= p = 1/4 b= p+0.25p c=(p + 1/4)p d=5/4p 0.25p choose 2 answers

Using elimination, what is -4x+2y=-12 4x+8y=-24

There are a total of 75 students in the robotics club and the science club. the science club has 11 more students than the robotics club. how many students are in the science club?