All natural numbers are members of which other subset of real numbers?

An equation where variables are used to represent known values—function notation true or false

The pyramid shown has a square base that is 24 centimeters on each side. the slant height is 16 centimeters. what is the lateral surface area?

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12