20 vehicles in a parking lot: 3 suvs and 7 trucks. probability that any 7 randomly chosen parking spots have 2 suvs and 5 trucks or 3 suvs and 4 trucks

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

Which questions would most a reader identify the author's purpose for writing? check all that apply. what type of text is this? what type of reviews did the book receive? how many copies of the book have been sold? what is the central idea? how does this text make one feel?

How is this equation completed? i cannot find any examples in the book.