The average kinetic energy of the atoms in an object determines its a: speed b: temperature c: mass d: specific heat

The length of each stair is 11 inches. what is the rise, r, for each stair? round to the nearest inch. 2 inches 7 inches 17 inches 24 inches

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

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?