John used digits from 0 to 6 to create a three-digit pin code. he forgot his pin code. he remembers that his code contains different ascending digits. what is the maximum number of combinations john has to check to find his pin code.

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Acircular garden with radius of 8 feet is surrounded by a circular path with a width of 3 feet. what is the approximate area of the path alone? use 3.14 for π

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex