How would i solve by substitution the equation: y=x^2-4x+3 and y=x-3?

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

3.4a=57.8 what is the the value of a

Find the rate of change for the situation.you run 7 miles in one hour and 21 miles in three hours.