A biologist studied the populations of geckos and salamanders at Huntington Beach State Park over a five year period The biologist modeled the populations, in thousands, with the following polynomials where x is time, in

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?