Dinosaurs have been extinct for about 6.5 X 10 years, while Neanderthals have been extinct for about 30 x 109 years. About how many times longer have
dinosaurs been extinct than Neanderthals?
1000 times longer
20,000 times longer
2000 times longer
O 10,000 times longer

Dinosaurs have been extinct for about 65 X 10 years while Neanderthals have been extinct for about 30 x 109 years About how many times longer have dinosaurs bee class=