There are a total of 78 baseball and football cards in a box. the ratio of baseball cards to football cards 8 to 5. how many baseball cards are in the box?

Ajar contains a mixture of 20 black marbles, 16 red marbles, and 4 white marbles, all the same size. find the probability of drawing a white or red marble on the first draw. 125 12 01 next question ask for turn it in

5(-9w) put expression in distributive property

Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?