Joe is trying to decide which service provider to use. Company A charges a flat fee of $35 a month plus 25 a minute used. Company B has only a $20 a month fee but charges 95 per minute. How many minutes does Joe need to average per month to justify going with Company A? I have set up my equation in excel as 35+.25A=20+.95B. How do I use solver in excel to find the answer?