A reception hall has two kinds of tables. A round table seats 6 people and a rectangular table seats 10 people. A couple is planning their wedding for 80 people. Write an equation that represents the number of round and rectangular tables that can seat 80 people. Would 7 round tables and 1 rectangular table seat 80 people? Why or why not?

Give an example of a combination of round tables and rectangular tables that will seat 80 people.

Please answer all 3 questions thank you

In the image, layer a is the topmost layer. layer c contains fossils from the precambrian era. layer b contains dinosaur fossils, and layer a contains fossils of mammals. which two statements are supported by this evidence? 1. mammals lived before the precambrian era. 2. dinosaurs and mammals existed in the precambrian era. 3. dinosaurs evolved after precambrian organisms. 4. precambrian organisms evolved after dinosaurs. 5. precambrian organisms were the first life-forms to become fossilized, according to this sample.