the school skateboard team members decide to build their own skateboards to save money. how many build-your-own skateboards will they have to build to save the cost of a ready-to-roll skateboard

What is the length of the missing leg in this right triangle? 18 mm 24 mm 26 mm 32 mm

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

About 9% of th population is hopelessly romantic. if 2 people are randomly selected from the population, what is the probability that at least 1 person is hopelessly romantic?