Whats the circuference of a circle

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

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4