How many whole numbers less than 500 can be formed using the digits 1,2, 4, and 5

Which function families have maximums and minimums? 1.)linear absolute value functions and exponential functions 2.) linear absolute value functions and quadratic functions 3.) linear absolute value functions and linear functions 4.) linear absolute value functions and constant functions

What is the prime factorization of 195

Name the quadrilaterals that have four equal sides.