Parker opens his door 65° and then stops because a slipper is stuck under the door. He removes the slipper and then opens the door another 15°. Write an equation to show how many degrees Parker opens the closet door in all.

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.

Well if you have 20 bats you probably want 20 balls? you don’t have enough context to answer the question.