At Westonci.ca, we connect you with the answers you need, thanks to our active and informed community. Connect with a community of experts ready to help you find solutions to your questions quickly and accurately. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.

a 1lb box costs .50 to mail through the postal service. a 3lb box cost .92 to mail through the postal service. the postal services calculates the weight to the whole pound. what functions represent the total cost f(x), to send a letter that is x pounds? select all that apply.
A- f(x)=0.21(x-1)+0.50
B- f(x)=0.50(x-1)+0.21
C- f(x)=0.50x
D- f(x)=0.21x+0.29
E- f(x)=0.21x