Tony rounded each of the numbers 1, 143 and 1, 149 to the nearest hundred which word correctly compares the rounding numbers

#12 find the value of x. #13 find the value of the variable.

The spotter on the ground is standing beneath the safety net. what is his distance from the base of the platform, to the nearest meter? 3 meters, 2 meters, 4 meters, 1 meter?

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.