8. Calculate the final price including tax for a watch that costs $139.99 that is on sale for 20% off. a) $158.19
b) $111.99
c) $139.99
d) $126.55

Which statement is true about the function f(x)= square root -x ? the domain of the graph is all real numbers. the range of the graph is all real numbers. the domain of the graph is all real numbers less than or equal to 0. the range of the graph is all real numbers less than or equal to 0.