A year has 52 weeks, so if he talks for 30 minutes every week, the total number of call hours is 52*30 = <<52*30=1560>>1560 minutes.

Since he is charged 0.05 cents per call, the total cost is 1560*.05 = <<1560*.05=78>>78 dollars

# Answer

78
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Noah, who loves his Grammy, calls her every week to talk about his day. If each call lasts 30 minutes and he is charged $0.05 per call minute, how much would he be billed if he makes the calls for a year?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
78
Noah, who loves his Grammy, calls her every week to talk about his day. If each call lasts 30 minutes and he is charged $0.05 per call minute, how much would he be billed if he makes the calls for a year?
train