One phone company charges a flat fee of $35 , plus $0.15 for each minute. The other phone company charges a flat fee of $20 , plus $0.25 for each minute. Which equation can be used to solve for the number of minutes, m , for which the companies charge the same amount? CLEAR CHECK 15m+35=25m+20 0.15m+35=0.25m+20 0.15m+0.25m=20+35 0.15+35m=0.25+20m