First, write the formula: monthly fee: $14 minute rate: 7¢ or $0.07 total charge: $105.49 .07x + 14 ≥ 105.49 (the sign is this way because they said this price was the least she had been charged for a month. You can solve for x just like you would in an equation by making the ≥ sign an equal sign .07x + 14 = 105.49 - 14 -14 .07x = 91.49 ÷ .07 ÷ .07 x = 1307 minutes since you didn't divide by a negative number, the inequality sign stays the same: x ≥ 1307
