Why does Mama Lil not want Bebe to work on the bridge renovations?

What is the measure of ∠m? 81° 65° 53° 98° answer plz

Of the 168 hours in a week as a full time student you should spend how many hours per week on school work?

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.