Question

Can you help me on this one please

Answer 1

Answer: x ≥ 1307

Explanation:

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