Subtract

9x2 + 7x - 2 from 8x – 10.

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?

Why does the shape of the distribution of the weights of russet potatoes tend to be symmetrical?

Is 0.8 a rational or irrational number