From the digits 0, 1, 2, 3, 4, 5, 6, how many different four-digit natural numbers can be formed that are greater than 2020?

Statement: if two distinct planes intersect, then their intersection is a line. which geometry term does the statement represent? defined term postulate theorem undefined term

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities