The sum of a number and 14

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

Use set builder notation to represent the following set: { -3, -2, -1, 0}

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?